From 3b4c137856d94f94231415793f45a104a19c3604 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Tue, 13 Oct 2020 10:58:51 +0100
Subject: [PATCH] arm64: tegra: Add missing CPU PMUs on Tegra186

Add the description of CPU PMUs for both the Denver and A57 clusters,
which enables the perf subsystem.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra186.dtsi | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 0c46ab7..a55d7ac 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -1534,7 +1534,7 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@0 {
+		denver_0: cpu@0 {
 			compatible = "nvidia,tegra186-denver";
 			device_type = "cpu";
 			i-cache-size = <0x20000>;
@@ -1547,7 +1547,7 @@
 			reg = <0x000>;
 		};
 
-		cpu@1 {
+		denver_1: cpu@1 {
 			compatible = "nvidia,tegra186-denver";
 			device_type = "cpu";
 			i-cache-size = <0x20000>;
@@ -1560,7 +1560,7 @@
 			reg = <0x001>;
 		};
 
-		cpu@2 {
+		ca57_0: cpu@2 {
 			compatible = "arm,cortex-a57";
 			device_type = "cpu";
 			i-cache-size = <0xC000>;
@@ -1573,7 +1573,7 @@
 			reg = <0x100>;
 		};
 
-		cpu@3 {
+		ca57_1: cpu@3 {
 			compatible = "arm,cortex-a57";
 			device_type = "cpu";
 			i-cache-size = <0xC000>;
@@ -1586,7 +1586,7 @@
 			reg = <0x101>;
 		};
 
-		cpu@4 {
+		ca57_2: cpu@4 {
 			compatible = "arm,cortex-a57";
 			device_type = "cpu";
 			i-cache-size = <0xC000>;
@@ -1599,7 +1599,7 @@
 			reg = <0x102>;
 		};
 
-		cpu@5 {
+		ca57_3: cpu@5 {
 			compatible = "arm,cortex-a57";
 			device_type = "cpu";
 			i-cache-size = <0xC000>;
@@ -1631,6 +1631,22 @@
 		};
 	};
 
+	pmu_denver {
+		compatible = "nvidia,denver-pmu", "arm,armv8-pmuv3";
+		interrupts = <GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&denver_0 &denver_1>;
+	};
+
+	pmu_a57 {
+		compatible = "arm,cortex-a57-pmu", "arm,armv8-pmuv3";
+		interrupts = <GIC_SPI 296 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 297 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 298 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 299 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&ca57_0 &ca57_1 &ca57_2 &ca57_3>;
+	};
+
 	thermal-zones {
 		a57 {
 			polling-delay = <0>;
-- 
2.7.4