linux-kernel - Re: [PATCH 0/2] drm/msm/dpu: improve LM allocation

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Message-ID: <176895840438.3580355.1415508163541607317.b4-ty@oss.qualcomm.com>
Date: Wed, 21 Jan 2026 03:20:18 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jesszhan0024@...il.com>, Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] drm/msm/dpu: improve LM allocation

On Thu, 15 Jan 2026 22:05:37 +0200, Dmitry Baryshkov wrote:
> Not all Line Mixers have corresponding DSPP blocks, which are necessary
> for CTM or Gamma Correction. Currently it is possible for CTM-less CRTCs
> to get a grip of DSPP-enabled LMs, making it impossible to use CTM (or
> GC, once enabled) for other CRTCs. Make sure that RM allocates simpler
> LMs first, leaving LMs with attached DSPP for the CRTCs which need them.
> 
> 
> [...]

Applied to msm-next, thanks!

[1/2] drm/msm/dpu: correct error messages in RM
      https://gitlab.freedesktop.org/lumag/msm/-/commit/98c8f146f574
[2/2] drm/msm/dpu: try reserving the DSPP-less LM first
      https://gitlab.freedesktop.org/lumag/msm/-/commit/42f62cd79578

Best regards,
-- 
With best wishes
Dmitry