linux-kernel - [PATCH AUTOSEL 5.18 07/39] riscv: dts: microchip: Add mpfs' topology information

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Date:   Sun, 14 Aug 2022 12:22:56 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Conor Dooley <conor.dooley@...rochip.com>,
        Brice Goglin <Brice.Goglin@...ia.fr>,
        Sudeep Holla <sudeep.holla@....com>,
        Sasha Levin <sashal@...nel.org>, daire.mcnamara@...rochip.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        paul.walmsley@...ive.com, palmer@...belt.com,
        aou@...s.berkeley.edu, linux-riscv@...ts.infradead.org,
        devicetree@...r.kernel.org
Subject: [PATCH AUTOSEL 5.18 07/39] riscv: dts: microchip: Add mpfs' topology information

From: Conor Dooley <conor.dooley@...rochip.com>

[ Upstream commit 88d319c6abaeb37f0e2323275eaf57a8388e0265 ]

The mpfs has no cpu-map node, so tools like hwloc cannot correctly
parse the topology. Add the node using the existing node labels.

Reported-by: Brice Goglin <Brice.Goglin@...ia.fr>
Link: https://github.com/open-mpi/hwloc/issues/536
Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
Reviewed-by: Sudeep Holla <sudeep.holla@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 .../boot/dts/microchip/microchip-mpfs.dtsi    | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
index 2f75e39d2fdd..37c05ba6e6bf 100644
--- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
+++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
@@ -143,6 +143,30 @@ cpu4_intc: interrupt-controller {
 				interrupt-controller;
 			};
 		};
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+
+				core1 {
+					cpu = <&cpu1>;
+				};
+
+				core2 {
+					cpu = <&cpu2>;
+				};
+
+				core3 {
+					cpu = <&cpu3>;
+				};
+
+				core4 {
+					cpu = <&cpu4>;
+				};
+			};
+		};
 	};
 
 	refclk: mssrefclk {
-- 
2.35.1