Thread (9 messages) 9 messages, 3 authors, 2018-08-27

[PATCH v2 3/3] dts: arm64/sdm845: Add node for qcom,smmu-v2

From: robin.murphy@arm.com (Robin Murphy)
Date: 2018-08-14 10:49:48
Also in: linux-arm-msm, linux-devicetree, linux-iommu, lkml

Hi Vivek,

On 14/08/18 11:27, Vivek Gautam wrote:
quoted hunk ↗ jump to hunk
Add device node for qcom,smmu-v2 available on sdm845.
This smmu is available only to GPU device.

Signed-off-by: Vivek Gautam <redacted>
---
  arch/arm64/boot/dts/qcom/sdm845.dtsi | 23 +++++++++++++++++++++++
  1 file changed, 23 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 1c2be2082f33..bd1ec5fa5146 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -6,6 +6,7 @@
   */
  
  #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+#include <dt-bindings/clock/qcom,gpucc-sdm845.h>
  #include <dt-bindings/clock/qcom,rpmh.h>
  #include <dt-bindings/interrupt-controller/arm-gic.h>
  #include <dt-bindings/soc/qcom,rpmh-rsc.h>
@@ -989,6 +990,28 @@
  			cell-index = <0>;
  		};
  
+		gpu_smmu: iommu at 5040000 {
+			compatible = "qcom,sdm845-smmu-v2", "qcom,smmu-v2";
Which of "sdm845" or "msm8996"[1] is the actual SoC name here?

Robin.

[1] 
https://www.mail-archive.com/freedreno at lists.freedesktop.org/msg02659.html
+			reg = <0x5040000 0x10000>;
+			#iommu-cells = <1>;
+			#global-interrupts = <2>;
+			interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 364 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 365 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 366 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 367 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 368 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 369 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 370 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 371 IRQ_TYPE_EDGE_RISING>;
+			clock-names = "bus", "iface";
+			clocks = <&gcc GCC_GPU_MEMNOC_GFX_CLK>,
+				 <&gcc GCC_GPU_CFG_AHB_CLK>;
+
+			/*power-domains = <&gpucc GPU_CX_GDSC>;*/
+		};
+
  		apps_smmu: iommu at 15000000 {
  			compatible = "qcom,sdm845-smmu-500", "arm,mmu-500";
  			reg = <0x15000000 0x80000>;
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