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Date: Mon, 14 Jan 2019 10:42:55 -0800
From: Matthias Kaehlcke <mka@...omium.org>
To: Andy Gross <andy.gross@...aro.org>,
David Brown <david.brown@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>
Cc: linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Douglas Anderson <dianders@...omium.org>,
Rajendra Nayak <rnayak@...eaurora.org>,
Matthias Kaehlcke <mka@...omium.org>
Subject: [PATCH] arm64: dts: sdm845: Add CPU topology
The 8 CPU cores of the SDM845 are organized in two clusters of 4 big
("gold") and 4 little ("silver") cores. Add a cpu-map node to the DT
that describes this topology.
Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
---
arch/arm64/boot/dts/qcom/sdm845.dtsi | 38 ++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index c27cbd3bcb0a6..f6c0d87e663f3 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -192,6 +192,44 @@
next-level-cache = <&L3_0>;
};
};
+
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&CPU0>;
+ };
+
+ core1 {
+ cpu = <&CPU1>;
+ };
+
+ core2 {
+ cpu = <&CPU2>;
+ };
+
+ core3 {
+ cpu = <&CPU3>;
+ };
+ };
+
+ cluster1 {
+ core0 {
+ cpu = <&CPU4>;
+ };
+
+ core1 {
+ cpu = <&CPU5>;
+ };
+
+ core2 {
+ cpu = <&CPU6>;
+ };
+
+ core3 {
+ cpu = <&CPU7>;
+ };
+ };
+ };
};
pmu {
--
2.20.1.97.g81188d93c3-goog
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