From 57222f077bd05b6ef8c5b2998400122f3c202e51 Mon Sep 17 00:00:00 2001 From: Konrad Dybcio Date: Thu, 19 Sep 2024 00:57:16 +0200 Subject: [PATCH] arm64: dts: qcom: sc8180x: 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-v1-3-5b3a8662403d@quicinc.com Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi index 0e9429684dd97..e80e0d3b77329 100644 --- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi @@ -3662,7 +3662,7 @@ , , ; - + dma-coherent; }; remoteproc_adsp: remoteproc@17300000 { -- 2.50.1