From: Konrad Dybcio <quic_kdybcio@xxxxxxxxxxx>
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 <quic_kdybcio@xxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/qdu1000.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/qcom/qdu1000.dtsi b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
index 642ca8f0236b3944c5962e5b12b5959cd349812f..1dd760e97794877bae35d19ca264f8fc70f96c8b 100644
--- a/arch/arm64/boot/dts/qcom/qdu1000.dtsi
+++ b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
@@ -1412,6 +1412,7 @@ apps_smmu: iommu@15000000 {
<GIC_SPI 319 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
};
intc: interrupt-controller@17200000 {
--
2.46.1
