linux-kernel - Re: [PATCH 5/7] arm64: dts: qcom: sm8550: Mark APPS SMMU as dma-coherent

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Message-ID: <CAA8EJpp2UbiknJ876ccCiSV2hDYdiGVRiQBdAEMM7e9z5OqK3A@mail.gmail.com>
Date:   Wed, 30 Aug 2023 23:04:17 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Abel Vesa <abel.vesa@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Sai Prakash Ranjan <quic_saipraka@...cinc.com>,
        Vinod Koul <vkoul@...nel.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, dmaengine@...r.kernel.org
Subject: Re: [PATCH 5/7] arm64: dts: qcom: sm8550: Mark APPS SMMU as dma-coherent

On Wed, 30 Aug 2023 at 21:32, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
>
> Like on earlier flagship Qualcomm SoCs, the SMMU is dma-coherent.
> Mark it as such.

On earlier SoCs we marked Adreno SMMU as dma-coherent, not the apps
one. Only on sm8250 you've added dma-coherent to the apps smmu.

>
> Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8550.dtsi | 1 +
>  1 file changed, 1 insertion(+)

-- 
With best wishes
Dmitry