From 05bd9923d15e8508cd0fa4f3d03437df1a9362aa Mon Sep 17 00:00:00 2001 From: Konrad Dybcio Date: Thu, 19 Sep 2024 00:57:21 +0200 Subject: [PATCH] arm64: dts: qcom: sm8150: Affirm IDR0.CCTW on apps_smmu On RPMh-based SoCs, the APPS SMMU advertizes support for cache-coherent pagetable walk via the IDR0 register. This however is not respected by the arm-smmu driver unless dma-coherent is set. Mark the node as dma-coherent to ensure this (and other) implementations take this coherency into account. Signed-off-by: Konrad Dybcio Tested-by: Steev Klimaszewski # Thinkpad X13s (sc8280xp) Tested-by: Neil Armstrong # on sdm845-rb3 Link: https://lore.kernel.org/r/20240919-topic-apps_smmu_coherent-v1-8-5b3a8662403d@quicinc.com Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/sm8150.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi index 27f87835bc55..28e57ad885f4 100644 --- a/arch/arm64/boot/dts/qcom/sm8150.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi @@ -4296,6 +4296,7 @@ , , ; + dma-coherent; }; remoteproc_adsp: remoteproc@17300000 { -- 2.50.1