arm64: dts: allwinner: H5: Add PMU node

Add the Performance Monitoring Unit (PMU) device tree node to the H5
.dtsi, which tells DT users which interrupts are triggered by PMU
overflow events on each core.
As with the A64, the interrupt numbers from the manual were wrong (off
by 4), the actual SPI IDs have been gathered in U-Boot, and were
verified with perf in Linux.

Tested with perf record and taskset on an OrangePi PC2.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
index e92c4de5bf3b458cd6f70dc95a722042b9076c4b..7c775a918a4e7e15956191132459081ec1f4c325 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
@@ -54,21 +54,21 @@
                        enable-method = "psci";
                };
 
-               cpu@1 {
+               cpu1: cpu@1 {
                        compatible = "arm,cortex-a53";
                        device_type = "cpu";
                        reg = <1>;
                        enable-method = "psci";
                };
 
-               cpu@2 {
+               cpu2: cpu@2 {
                        compatible = "arm,cortex-a53";
                        device_type = "cpu";
                        reg = <2>;
                        enable-method = "psci";
                };
 
-               cpu@3 {
+               cpu3: cpu@3 {
                        compatible = "arm,cortex-a53";
                        device_type = "cpu";
                        reg = <3>;
@@ -76,6 +76,16 @@
                };
        };
 
+       pmu {
+               compatible = "arm,cortex-a53-pmu",
+                            "arm,armv8-pmuv3";
+               interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
+                            <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+               interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+       };
+
        psci {
                compatible = "arm,psci-0.2";
                method = "smc";