From: Thierry Reding <treding@nvidia.com>
Date: Tue, 29 Oct 2019 11:25:45 +0000 (+0100)
Subject: arm64: tegra: Add PMU on Tegra210
X-Git-Tag: v5.5-rc1~39^2~20^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=264064ab0b5cf30a1faf06696acc174e224e64a9;p=thirdparty%2Fkernel%2Flinux.git

arm64: tegra: Add PMU on Tegra210

The NVIDIA Tegra210 contains an ARM PMU v3 that can be used to gather
statistics about the processors and their memory system. Add a device
tree node so that this functionality can be exposed.

Reported-by: William Cohen <giantklein@gmail.com>
Tested-by: William Cohen <giantklein@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index aac7f3efee167..7832a3ea79c8d 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -1439,6 +1439,16 @@
 		};
 	};
 
+	pmu {
+		compatible = "arm,armv8-pmuv3";
+		interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&{/cpus/cpu@0} &{/cpus/cpu@1}
+				      &{/cpus/cpu@2} &{/cpus/cpu@3}>;
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13