linux-kernel - Re: [PATCH v2 0/7] add DSC 1.2 dpu supports

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Date:   Sat, 29 Apr 2023 06:12:37 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc:     Kuogee Hsieh <quic_khsieh@...cinc.com>,
        dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, dianders@...omium.org,
        vkoul@...nel.org, daniel@...ll.ch, airlied@...il.com,
        agross@...nel.org, andersson@...nel.org, quic_sbillaka@...cinc.com,
        marijn.suijten@...ainline.org, freedreno@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/7] add DSC 1.2 dpu supports

On Sat, 29 Apr 2023 at 05:51, Abhinav Kumar <quic_abhinavk@...cinc.com> wrote:
>
>
>
> On 4/28/2023 7:46 PM, Dmitry Baryshkov wrote:
> > On Sat, 29 Apr 2023 at 02:45, Kuogee Hsieh <quic_khsieh@...cinc.com> wrote:
> >>
> >> This series adds the DPU side changes to support DSC 1.2 encoder. This
> >> was validated with both DSI DSC 1.2 panel and DP DSC 1.2 monitor.
> >> The DSI and DP parts will be pushed later on top of this change.
> >> This seriel is rebase on [1], [2] and catalog fixes from [3].
> >>
> >> [1]: https://patchwork.freedesktop.org/series/116851/
> >> [2]: https://patchwork.freedesktop.org/series/116615/
> >> [3]: https://patchwork.freedesktop.org/series/112332/
> >>
> >> Abhinav Kumar (2):
> >>    drm/msm/dpu: add DSC 1.2 hw blocks for relevant chipsets
> >>    drm/msm/dpu: add dsc blocks for remaining chipsets in catalog
> >>
> >> Kuogee Hsieh (5):
> >>    drm/msm/dpu: add support for DSC encoder v1.2 engine
> >>    drm/msm/dpu: separate DSC flush update out of interface
> >>    drm/msm/dpu: add DPU_PINGPONG_DSC feature PP_BLK and PP_BLK_TE
> >>    drm/msm/dpu: save dpu topology configuration
> >>    drm/msm/dpu: calculate DSC encoder parameters dynamically
> >
> > Another generic comment: this patchset doesn't have discussed RM
> > changes to allocate DSC blocks in proper pairs as required by DCE.
> >
>
> We have already made that change. It will be pushed with the DP series
> because today DSC only support 2-2-1 so they will always be allocated in
> pairs.

Then there is no reason to touch the dpu_encoder in this series as the
topology is also known to be 2:2:1.

>
> >>
> >>   drivers/gpu/drm/msm/Makefile                       |   1 +
> >>   .../drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h    |  19 +-
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_4_0_sdm845.h |   8 +-
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_5_0_sm8150.h |  26 +-
> >>   .../drm/msm/disp/dpu1/catalog/dpu_5_1_sc8180x.h    |  35 ++-
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_6_0_sm8250.h |  26 +-
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_6_2_sc7180.h |   4 +-
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_6_3_sm6115.h |   2 +-
> >>   .../drm/msm/disp/dpu1/catalog/dpu_6_5_qcm2290.h    |   2 +-
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h |  14 +
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h |   7 +
> >>   .../drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h   |  16 +
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h |  14 +
> >>   .../gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h |  14 +
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c        | 102 ++++---
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c     |  35 ++-
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h     |  36 ++-
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c         |  22 +-
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h         |  10 +
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h         |  14 +-
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c     | 335 +++++++++++++++++++++
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c    |   9 +-
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c             |   7 +-
> >>   23 files changed, 642 insertions(+), 116 deletions(-)
> >>   create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c
> >>
> >> --
> >> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> >> a Linux Foundation Collaborative Project
> >>
> >
> >



-- 
With best wishes
Dmitry