linux-hardening - [PATCH 4/7] arm64: dts: qcom: sm8550: Mark APPS SMMU as dma-coherent

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Date: Mon, 12 Feb 2024 14:10:12 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: James Schulman <james.schulman@...rus.com>, 
 David Rhodes <david.rhodes@...rus.com>, 
 Richard Fitzgerald <rf@...nsource.cirrus.com>, 
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Ricardo Rivera-Matos <rriveram@...nsource.cirrus.com>, 
 Bjorn Andersson <andersson@...nel.org>, Abel Vesa <abel.vesa@...aro.org>, 
 Sai Prakash Ranjan <quic_saipraka@...cinc.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Kees Cook <keescook@...omium.org>, Tony Luck <tony.luck@...el.com>, 
 "Guilherme G. Piccoli" <gpiccoli@...lia.com>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 alsa-devel@...a-project.org, patches@...nsource.cirrus.com, 
 linux-sound@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 linux-hardening@...r.kernel.org, Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 4/7] arm64: dts: qcom: sm8550: Mark APPS SMMU as
 dma-coherent

Like on earlier flagship Qualcomm SoCs, the SMMU is dma-coherent.
Mark it as such.

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(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index d696ec6c6850..868d48b85555 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -3934,6 +3934,7 @@ apps_smmu: iommu@...00000 {
 				     <GIC_SPI 694 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 695 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 696 IRQ_TYPE_LEVEL_HIGH>;
+			dma-coherent;
 		};

 		intc: interrupt-controller@...00000 {

-- 
2.43.1