linux-kernel - Re: [PATCH 1/6] drm/msm/dpu: Fix allocation of RGB SSPPs without scaling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5ijdhvmmqgt3xdfajgumv46ifsgnt7h4amtrbfoklcl5do4xjz@ks4ufzfzpyij>
Date: Tue, 28 Oct 2025 23:24:00 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Vladimir Lypak <vladimir.lypak@...il.com>
Cc: Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Kalyan Thota <quic_kalyant@...cinc.com>,
        Vinod Polimera <quic_vpolimer@...cinc.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Barnabás Czémán <barnabas.czeman@...nlining.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] drm/msm/dpu: Fix allocation of RGB SSPPs without
 scaling

On Fri, Oct 17, 2025 at 07:58:35PM +0000, Vladimir Lypak wrote:
> Due to condition in dpu_rm_reserve_sspp, RGB SSPPs are only tried when
> scaling is requested, which prevents those SSPPs from being reserved if
> we don't need scaling at all. Instead we should check if YUV support is
> requested, since scaling on RGB SSPPs is optional and is not implemented
> in driver yet.
> 
> Fixes: 774bcfb73176 ("drm/msm/dpu: add support for virtual planes")
> Signed-off-by: Vladimir Lypak <vladimir.lypak@...il.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry