linux-kernel - [PATCH v3 06/10] arm64: dts: apple: Add t8103 PMU interrupt affinities

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Message-Id: <20211214182634.727330-7-maz@kernel.org>
Date:   Tue, 14 Dec 2021 18:26:30 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Mark Rutland <mark.rutland@....com>, Will Deacon <will@...nel.org>,
        Hector Martin <marcan@...can.st>,
        Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Dougall <dougallj@...il.com>, kernel-team@...roid.com
Subject: [PATCH v3 06/10] arm64: dts: apple: Add t8103 PMU interrupt affinities

The two PMU pseudo interrupts have specific affinities. One set
is affine to the small cores, and the other set affine to the
big ones.

Signed-off-by: Marc Zyngier <maz@...nel.org>
---
 arch/arm64/boot/dts/apple/t8103.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index e22c9433d5e0..207ee69e6e2e 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -132,6 +132,18 @@ aic: interrupt-controller@...100000 {
 			#interrupt-cells = <3>;
 			interrupt-controller;
 			reg = <0x2 0x3b100000 0x0 0x8000>;
+
+			affinities {
+				e-core-pmu-affinity {
+					fiq-index = <AIC_CPU_PMU_E>;
+					affinity = <&cpu0 &cpu1 &cpu2 &cpu3>;
+				};
+
+				p-core-pmu-affinity {
+					fiq-index = <AIC_CPU_PMU_P>;
+					affinity = <&cpu4 &cpu5 &cpu6 &cpu7>;
+				};
+			};
 		};
 
 		pinctrl_ap: pinctrl@...100000 {
-- 
2.30.2