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From:   Stephen Boyd <swboyd@chromium.org>
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Date:   Tue, 3 Aug 2021 15:13:10 -0500
Message-ID: <CAE-0n52+PvNpz5uqf3O_NsfQ4q2taeZmdSdoM3fGDLp5aQVj-A@mail.gmail.com>
Subject: Re: [v2] drm/msm/disp/dpu1: add safe lut config in dpu driver
To:     Kalyan Thota <kalyan_t@codeaurora.org>, devicetree@vger.kernel.org,
        dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org,
        linux-arm-msm@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, robdclark@gmail.com,
        dianders@chromium.org, mkrishn@codeaurora.org,
        saiprakash.ranjan@codeaurora.org, rnayak@codeaurora.org,
        stable@vger.kernel.org
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Quoting Kalyan Thota (2021-08-03 03:41:47)
> Add safe lut configuration for all the targets in dpu
> driver as per QOS recommendation.
>
> Issue reported on SC7280:
>
> With wait-for-safe feature in smmu enabled, RT client
> buffer levels are checked to be safe before smmu invalidation.
> Since display was always set to unsafe it was delaying the
> invalidaiton process thus impacting the performance on NRT clients
> such as eMMC and NVMe.
>
> Validated this change on SC7280, With this change eMMC performance
> has improved significantly.
>
> Changes in v1:
> - Add fixes tag (Sai)
> - CC stable kernel (Dimtry)
>
> Fixes: cfacf946a464d4(drm/msm/disp/dpu1: add support for display for SC7280 target)

This is wrong format and commit hash

Fixes: 591e34a091d1 ("drm/msm/disp/dpu1: add support for display for
SC7280 target")

> Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
> Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> (sc7280, sc7180)