linux-kernel - [PATCH 07/23] arm64: zynqmp: Add pmu interrupt-affinity

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Message-ID: <4c6674bf7e048e7370248e50ed3d011d604d020e.1683034376.git.michal.simek@amd.com>
Date:   Tue, 2 May 2023 15:35:35 +0200
From:   Michal Simek <michal.simek@....com>
To:     <linux-kernel@...r.kernel.org>, <monstr@...str.eu>,
        <michal.simek@...inx.com>, <git@...inx.com>
CC:     Radhey Shyam Pandey <radhey.shyam.pandey@....com>,
        Harini Katakam <harini.katakam@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Parth Gajjar <parth.gajjar@....com>,
        Piyush Mehta <piyush.mehta@...inx.com>,
        Rob Herring <robh+dt@...nel.org>,
        Robert Hancock <robert.hancock@...ian.com>,
        Tanmay Shah <tanmay.shah@....com>,
        Vishal Sagar <vishal.sagar@....com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 07/23] arm64: zynqmp: Add pmu interrupt-affinity

From: Radhey Shyam Pandey <radhey.shyam.pandey@....com>

Explicitly specify interrupt affinity to avoid HW perfevents
need to guess. This avoids the following error upon linux boot:
armv8-pmu pmu: hw perfevents: no interrupt-affinity property,
guessing.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@....com>
Signed-off-by: Michal Simek <michal.simek@....com>
---

 arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 61c7045eb992..a117294dc890 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -161,6 +161,10 @@ pmu {
 			     <0 144 4>,
 			     <0 145 4>,
 			     <0 146 4>;
+		interrupt-affinity = <&cpu0>,
+				     <&cpu1>,
+				     <&cpu2>,
+				     <&cpu3>;
 	};
 
 	psci {
-- 
2.36.1