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Subject: [Patch v3 06/11] arm64: tegra: Add cpu OPP tables and interconnects property
Date:   Mon, 20 Mar 2023 23:54:36 +0530
Message-ID: <20230320182441.11904-7-sumitg@nvidia.com>
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Add OPP table and interconnects property to scale DDR frequency with
CPU frequency for better performance. Each operating point entry of
the OPP table has CPU freq to per MC channel bandwidth mapping.
One table is added for each cluster even though the table data is
same because the bandwidth request is per cluster. This is done
because OPP framework creates a single icc path and hence single
bandwidth request if the table is marked as 'opp-shared' and shared
among all clusters. For us, the OPP table data is same but the MC
Client ID argument to interconnects property is different for each
cluster. So, having per cluster table makes different icc path for
each cluster and helps to make per cluster BW requests.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra234.dtsi | 276 +++++++++++++++++++++++
 1 file changed, 276 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index f1748cff8a33..285fff0bef99 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -3013,6 +3013,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl0_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER0 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3029,6 +3032,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl0_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER0 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3045,6 +3051,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl0_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER0 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3061,6 +3070,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl0_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER0 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3077,6 +3089,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl1_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER1 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3093,6 +3108,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl1_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER1 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3109,6 +3127,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl1_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER1 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3125,6 +3146,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl1_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER1 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3141,6 +3165,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl2_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER2 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3157,6 +3184,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl2_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER2 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3173,6 +3203,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl2_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER2 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3189,6 +3222,9 @@
 
 			enable-method = "psci";
 
+			operating-points-v2 = <&cl2_opp_tbl>;
+			interconnects = <&mc TEGRA_ICC_MC_CPU_CLUSTER2 &emc>;
+
 			i-cache-size = <65536>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <256>;
@@ -3445,4 +3481,244 @@
 		interrupt-parent = <&gic>;
 		always-on;
 	};
+
+	cl0_opp_tbl: opp-table-cluster0 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		cl0_ch1_opp1: opp-115200000 {
+			  opp-hz = /bits/ 64 <115200000>;
+			  opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp2: opp-268800000 {
+			opp-hz = /bits/ 64 <268800000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp3: opp-422400000 {
+			opp-hz = /bits/ 64 <422400000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp4: opp-576000000 {
+			opp-hz = /bits/ 64 <576000000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp5: opp-729600000 {
+			opp-hz = /bits/ 64 <729600000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp6: opp-883200000 {
+			opp-hz = /bits/ 64 <883200000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp7: opp-1036800000 {
+			opp-hz = /bits/ 64 <1036800000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp8: opp-1190400000 {
+			opp-hz = /bits/ 64 <1190400000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl0_ch1_opp9: opp-1344000000 {
+			opp-hz = /bits/ 64 <1344000000>;
+			opp-peak-kBps = <1632000>;
+		};
+
+		cl0_ch1_opp10: opp-1497600000 {
+			opp-hz = /bits/ 64 <1497600000>;
+			opp-peak-kBps = <1632000>;
+		};
+
+		cl0_ch1_opp11: opp-1651200000 {
+			opp-hz = /bits/ 64 <1651200000>;
+			opp-peak-kBps = <2660000>;
+		};
+
+		cl0_ch1_opp12: opp-1804800000 {
+			opp-hz = /bits/ 64 <1804800000>;
+			opp-peak-kBps = <2660000>;
+		};
+
+		cl0_ch1_opp13: opp-1958400000 {
+			opp-hz = /bits/ 64 <1958400000>;
+			opp-peak-kBps = <3200000>;
+		};
+
+		cl0_ch1_opp14: opp-2112000000 {
+			opp-hz = /bits/ 64 <2112000000>;
+			opp-peak-kBps = <6400000>;
+		};
+
+		cl0_ch1_opp15: opp-2201600000 {
+			opp-hz = /bits/ 64 <2201600000>;
+			opp-peak-kBps = <6400000>;
+		};
+	};
+
+	cl1_opp_tbl: opp-table-cluster1 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		cl1_ch1_opp1: opp-115200000 {
+			  opp-hz = /bits/ 64 <115200000>;
+			  opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp2: opp-268800000 {
+			opp-hz = /bits/ 64 <268800000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp3: opp-422400000 {
+			opp-hz = /bits/ 64 <422400000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp4: opp-576000000 {
+			opp-hz = /bits/ 64 <576000000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp5: opp-729600000 {
+			opp-hz = /bits/ 64 <729600000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp6: opp-883200000 {
+			opp-hz = /bits/ 64 <883200000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp7: opp-1036800000 {
+			opp-hz = /bits/ 64 <1036800000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp8: opp-1190400000 {
+			opp-hz = /bits/ 64 <1190400000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl1_ch1_opp9: opp-1344000000 {
+			opp-hz = /bits/ 64 <1344000000>;
+			opp-peak-kBps = <1632000>;
+		};
+
+		cl1_ch1_opp10: opp-1497600000 {
+			opp-hz = /bits/ 64 <1497600000>;
+			opp-peak-kBps = <1632000>;
+		};
+
+		cl1_ch1_opp11: opp-1651200000 {
+			opp-hz = /bits/ 64 <1651200000>;
+			opp-peak-kBps = <2660000>;
+		};
+
+		cl1_ch1_opp12: opp-1804800000 {
+			opp-hz = /bits/ 64 <1804800000>;
+			opp-peak-kBps = <2660000>;
+		};
+
+		cl1_ch1_opp13: opp-1958400000 {
+			opp-hz = /bits/ 64 <1958400000>;
+			opp-peak-kBps = <3200000>;
+		};
+
+		cl1_ch1_opp14: opp-2112000000 {
+			opp-hz = /bits/ 64 <2112000000>;
+			opp-peak-kBps = <6400000>;
+		};
+
+		cl1_ch1_opp15: opp-2201600000 {
+			opp-hz = /bits/ 64 <2201600000>;
+			opp-peak-kBps = <6400000>;
+		};
+	};
+
+	cl2_opp_tbl: opp-table-cluster2 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		cl2_ch1_opp1: opp-115200000 {
+			  opp-hz = /bits/ 64 <115200000>;
+			  opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp2: opp-268800000 {
+			opp-hz = /bits/ 64 <268800000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp3: opp-422400000 {
+			opp-hz = /bits/ 64 <422400000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp4: opp-576000000 {
+			opp-hz = /bits/ 64 <576000000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp5: opp-729600000 {
+			opp-hz = /bits/ 64 <729600000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp6: opp-883200000 {
+			opp-hz = /bits/ 64 <883200000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp7: opp-1036800000 {
+			opp-hz = /bits/ 64 <1036800000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp8: opp-1190400000 {
+			opp-hz = /bits/ 64 <1190400000>;
+			opp-peak-kBps = <816000>;
+		};
+
+		cl2_ch1_opp9: opp-1344000000 {
+			opp-hz = /bits/ 64 <1344000000>;
+			opp-peak-kBps = <1632000>;
+		};
+
+		cl2_ch1_opp10: opp-1497600000 {
+			opp-hz = /bits/ 64 <1497600000>;
+			opp-peak-kBps = <1632000>;
+		};
+
+		cl2_ch1_opp11: opp-1651200000 {
+			opp-hz = /bits/ 64 <1651200000>;
+			opp-peak-kBps = <2660000>;
+		};
+
+		cl2_ch1_opp12: opp-1804800000 {
+			opp-hz = /bits/ 64 <1804800000>;
+			opp-peak-kBps = <2660000>;
+		};
+
+		cl2_ch1_opp13: opp-1958400000 {
+			opp-hz = /bits/ 64 <1958400000>;
+			opp-peak-kBps = <3200000>;
+		};
+
+		cl2_ch1_opp14: opp-2112000000 {
+			opp-hz = /bits/ 64 <2112000000>;
+			opp-peak-kBps = <6400000>;
+		};
+
+		cl2_ch1_opp15: opp-2201600000 {
+			opp-hz = /bits/ 64 <2201600000>;
+			opp-peak-kBps = <6400000>;
+		};
+	};
 };
-- 
2.17.1