linux-kernel - Re: [PATCH RFT v3 11/14] soc: qcom: ubwc: Fix SM6125's ubwc

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Message-ID: <lkzvk5vqxy3oe4f67tg5hirmqarfcq6xibljhtspvufuebxbna@k36dw3km25qa>
Date: Sun, 18 May 2025 12:58:00 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konradybcio@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        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,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH RFT v3 11/14] soc: qcom: ubwc: Fix SM6125's ubwc_swizzle
 value

On Sat, May 17, 2025 at 07:32:45PM +0200, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> 
> The value of 7 (a.k.a. GENMASK(2, 0), a.k.a. disabling levels 1-3 of
> swizzling) is what we want on this platform (and others with a UBWC
> 1.0 encoder).
> 
> Fix it to make mesa happy (the hardware doesn't care about the 2 higher
> bits, as they weren't consumed on this platform).
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> ---
>  drivers/soc/qcom/ubwc_config.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

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

-- 
With best wishes
Dmitry