linux-kernel - [PATCH 5/5] riscv: dts: canaan: Add k210 topology information

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Message-Id: <20220705190435.1790466-6-mail@conchuod.ie>
Date:   Tue,  5 Jul 2022 20:04:36 +0100
From:   Conor Dooley <mail@...chuod.ie>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Daire McNamara <daire.mcnamara@...rochip.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Niklas Cassel <niklas.cassel@....com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Zong Li <zong.li@...ive.com>,
        Emil Renner Berthing <kernel@...il.dk>,
        Jonas Hahnfeld <hahnjo@...njo.de>
Cc:     devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Brice Goglin <Brice.Goglin@...ia.fr>
Subject: [PATCH 5/5] riscv: dts: canaan: Add k210 topology information

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

The k210 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>
---
 arch/riscv/boot/dts/canaan/k210.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index 44d338514761..ec944d1537dc 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -65,6 +65,18 @@ cpu1_intc: interrupt-controller {
 				compatible = "riscv,cpu-intc";
 			};
 		};
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+
+				core1 {
+					cpu = <&cpu1>;
+				};
+			};
+		};
 	};
 
 	sram: memory@...00000 {
-- 
2.37.0