From: Thierry Reding <tred...@nvidia.com>
The display controllers are attached to a separate ARM SMMU instance
that is dedicated to servicing isochronous memory clients. Add this ISO
instance of the ARM SMMU to device tree and attach all four display
controllers to it.
Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 80 ++++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 6ed296e27158..00f8248f216e 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1305,6 +1305,82 @@ pmc: pmc@c360000 {
interrupt-controller;
};
+ smmu_iso: iommu@10000000 {
+ compatible = "nvidia,tegra194-smmu", "nvidia,smmu-500";
+ reg = <0x10000000 0x800000>;
+ interrupts = <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>;
+ stream-match-mask = <0x7f80>;
+ #global-interrupts = <1>;
+ #iommu-cells = <1>;
+
+ nvidia,memory-controller = <&mc>;
+ status = "okay";
+ };
+
smmu: iommu@12000000 {
compatible = "nvidia,tegra194-smmu", "nvidia,smmu-500";
reg = <0x12000000 0x800000>,
@@ -1441,6 +1517,7 @@ display@15200000 {
interconnects = <&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
<&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
interconnect-names = "dma-mem",
"read-1";
+ iommus = <&smmu_iso
TEGRA194_SID_NVDISPLAY>;
nvidia,outputs = <&sor0 &sor1 &sor2
&sor3>;
nvidia,head = <0>;
@@ -1459,6 +1536,7 @@ display@15210000 {
interconnects = <&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
<&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
interconnect-names = "dma-mem",
"read-1";
+ iommus = <&smmu_iso
TEGRA194_SID_NVDISPLAY>;
nvidia,outputs = <&sor0 &sor1 &sor2
&sor3>;
nvidia,head = <1>;
@@ -1477,6 +1555,7 @@ display@15220000 {
interconnects = <&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
<&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
interconnect-names = "dma-mem",
"read-1";
+ iommus = <&smmu_iso
TEGRA194_SID_NVDISPLAY>;
nvidia,outputs = <&sor0 &sor1 &sor2
&sor3>;
nvidia,head = <2>;
@@ -1495,6 +1574,7 @@ display@15230000 {
interconnects = <&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
<&mc
TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
interconnect-names = "dma-mem",
"read-1";
+ iommus = <&smmu_iso
TEGRA194_SID_NVDISPLAY>;
nvidia,outputs = <&sor0 &sor1 &sor2
&sor3>;
nvidia,head = <3>;
--
2.30.2
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