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From: kalyan_t@codeaurora.org
To: Stephen Boyd <swboyd@chromium.org>
Cc: devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org,
	freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	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
Subject: Re: [Freedreno] [v2] drm/msm/disp/dpu1: add safe lut config in dpu driver
Date: Wed, 04 Aug 2021 11:07:40 +0530	[thread overview]
Message-ID: <b6aca5dda4e100694a3d8cb39cfc650d@codeaurora.org> (raw)
In-Reply-To: <CAE-0n52+PvNpz5uqf3O_NsfQ4q2taeZmdSdoM3fGDLp5aQVj-A@mail.gmail.com>

On 2021-08-04 01:43, Stephen Boyd wrote:
> 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
> 
My bad, i'll fix it right away
- KT

> 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)

      reply	other threads:[~2021-08-04  5:37 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 10:41 [v2] drm/msm/disp/dpu1: add safe lut config in dpu driver Kalyan Thota
2021-08-03 13:29 ` Dmitry Baryshkov
2021-08-03 20:13 ` Stephen Boyd
2021-08-04  5:37   ` kalyan_t [this message]

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