linux-kernel - Re: [PATCH RFT 05/14] drm/msm/a6xx: Resolve the meaning of AMSBC

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Message-ID: <2cb9a1f1-7283-419c-937e-5eecbe65f982@oss.qualcomm.com>
Date: Fri, 9 May 2025 14:31:35 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Connor Abbott <cwabbott0@...il.com>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org
Subject: Re: [PATCH RFT 05/14] drm/msm/a6xx: Resolve the meaning of AMSBC

On 5/8/25 9:16 PM, Connor Abbott wrote:
> On Thu, May 8, 2025 at 2:13 PM Konrad Dybcio <konradybcio@...nel.org> wrote:
>>
>> From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>>
>> The bit must be set to 1 if the UBWC encoder version is >= 3.0, drop it
>> as a separate field.
> 
> For these sorts of things, it's probably best to add a helper to the
> common ubwc config header. Other blocks also have bits for enabling
> AMSBC and similar things that also need to be set based on the UBWC
> version.

Good idea

Konrad