linux-kernel - [PATCH 2/2] arm64: dts: qcom: sm8250: Mark SMMUs as DMA coherent

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Message-Id: <20230704-topic-8250_pcie_dmac-v1-2-799603a980b0@linaro.org>
Date:   Tue, 04 Jul 2023 14:23:18 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     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>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Jonathan Marek <jonathan@...ek.ca>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 2/2] arm64: dts: qcom: sm8250: Mark SMMUs as DMA coherent

The SMMUs on SM8250 are cache-coherent. Mark them as such.

Fixes: a89441fcd09d ("arm64: dts: qcom: sm8250: add apps_smmu node")
Fixes: 04a3605b184e ("arm64: dts: qcom: add sm8250 GPU nodes")
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 1af0eed9eef5..ccc38c205de3 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2729,6 +2729,7 @@ adreno_smmu: iommu@...0000 {
 			clock-names = "ahb", "bus", "iface";
 
 			power-domains = <&gpucc GPU_CX_GDSC>;
+			dma-coherent;
 		};
 
 		slpi: remoteproc@...0000 {
@@ -5399,6 +5400,7 @@ apps_smmu: iommu@...00000 {
 					<GIC_SPI 696 IRQ_TYPE_LEVEL_HIGH>,
 					<GIC_SPI 697 IRQ_TYPE_LEVEL_HIGH>,
 					<GIC_SPI 707 IRQ_TYPE_LEVEL_HIGH>;
+			dma-coherent;
 		};
 
 		adsp: remoteproc@...00000 {

-- 
2.41.0