riscv: dts: sifive: Add fu740 topology information

[ Upstream commit bf6cd1c01c959a31002dfa6784c0d8caffed4cf1 ]

The fu740 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@inria.fr>
Link: https://github.com/open-mpi/hwloc/issues/536
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220705190435.1790466-4-mail@conchuod.ie
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
index abbb960..454079a 100644 (file)
--- a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
+++ b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
@@ -134,6 +134,30 @@
                                interrupt-controller;
                        };
                };
+
+               cpu-map {
+                       cluster0 {
+                               core0 {
+                                       cpu = <&cpu0>;
+                               };
+
+                               core1 {
+                                       cpu = <&cpu1>;
+                               };
+
+                               core2 {
+                                       cpu = <&cpu2>;
+                               };
+
+                               core3 {
+                                       cpu = <&cpu3>;
+                               };
+
+                               core4 {
+                                       cpu = <&cpu4>;
+                               };
+                       };
+               };
        };
        soc {
                #address-cells = <2>;