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Subject[PATCH V2] arm64: tegra: add topology data for Tegra194 cpu
Date
The xavier CPU architecture includes 8 CPU cores organized in
4 clusters. Add cpu-map data for topology initialization, this
fixes the topology information in
/sys/devices/system/cpu/cpu[n]/topology

Signed-off-by: Bo Yan <byan@nvidia.com>
---
V2: remove cache nodes, add topology data only

arch/arm64/boot/dts/nvidia/tegra194.dtsi | 58 +++++++++++++++++++++++++++-----
1 file changed, 50 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 6dfa1ca..35e6e76 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -870,56 +870,98 @@
#address-cells = <1>;
#size-cells = <0>;

- cpu@0 {
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&cl0_0>;
+ };
+
+ core1 {
+ cpu = <&cl0_1>;
+ };
+ };
+
+ cluster1 {
+ core0 {
+ cpu = <&cl1_0>;
+ };
+
+ core1 {
+ cpu = <&cl1_1>;
+ };
+ };
+
+ cluster2 {
+ core0 {
+ cpu = <&cl2_0>;
+ };
+
+ core1 {
+ cpu = <&cl2_1>;
+ };
+ };
+
+ cluster3 {
+ core0 {
+ cpu = <&cl3_0>;
+ };
+
+ core1 {
+ cpu = <&cl3_1>;
+ };
+ };
+ };
+
+ cl0_0: cpu@0 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x10000>;
enable-method = "psci";
};

- cpu@1 {
+ cl0_1: cpu@1 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x10001>;
enable-method = "psci";
};

- cpu@2 {
+ cl1_0: cpu@2 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x100>;
enable-method = "psci";
};

- cpu@3 {
+ cl1_1: cpu@3 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x101>;
enable-method = "psci";
};

- cpu@4 {
+ cl2_0: cpu@4 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x200>;
enable-method = "psci";
};

- cpu@5 {
+ cl2_1: cpu@5 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x201>;
enable-method = "psci";
};

- cpu@6 {
+ cl3_0: cpu@6 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x10300>;
enable-method = "psci";
};

- cpu@7 {
+ cl3_1: cpu@7 {
compatible = "nvidia,tegra194-carmel", "arm,armv8";
device_type = "cpu";
reg = <0x10301>;
--
2.7.4
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