linux-kernel - [PATCH 6/7] arm64: dts: qcom: sc7280: Mark Adreno SMMU as DMA coherent

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Message-Id: <20230926-topic-a643-v1-6-7af6937ac0a3@linaro.org>
Date:   Tue, 26 Sep 2023 20:24:41 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        cros-qcom-dts-watchers@...omium.org,
        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>,
        Stephen Boyd <swboyd@...omium.org>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Luca Weiss <luca.weiss@...rphone.com>,
        Rob Clark <robdclark@...omium.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 6/7] arm64: dts: qcom: sc7280: Mark Adreno SMMU as DMA
 coherent

The SMMUs on sc7280 are cache-coherent. APPS_SMMU is marked as such,
mark the GPU one as well.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 0d96d1454c49..edaca6c2cf8c 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -2783,6 +2783,7 @@ adreno_smmu: iommu@...0000 {
 					"gpu_cc_hub_aon_clk";
 
 			power-domains = <&gpucc GPU_CC_CX_GDSC>;
+			dma-coherent;
 		};
 
 		remoteproc_mpss: remoteproc@...0000 {

-- 
2.42.0