arm64: dts: qcom: sm8550: add cpu OPP table with DDR, LLCC & L3 bandwidths

Add the OPP tables for each CPU clusters (cpu0-1-2, cpu3-4-5-6 & cpu7)
to permit scaling the Last Level Cache Controller (LLCC), DDR and L3 cache
frequency by aggregating bandwidth requests of all CPU core with referenc
to the current OPP they are configured in by the LMH/EPSS hardware.

The effect is a proper caches & DDR frequency scaling when CPU cores
changes frequency.

The OPP tables were built using the downstream memlat ddr, llcc & l3
tables for each cluster types with the actual EPSS cpufreq LUT tables
from running a QCS8550 device.

Also add the OSC L3 Cache controller node.

Also add the interconnect entry for each cpu, with 3 different paths:
- CPU to Last Level Cache Controller (LLCC)
- Last Level Cache Controller (LLCC) to DDR
- L3 Cache from CPU to DDR interface

Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Link: https://lore.kernel.org/r/20260330-sm8550-ddr-bw-scaling-v4-1-5020c06983a0@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

1 files changed, 367 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 912525e9bca6..b7a7c49db077 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -17,6 +17,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/interconnect/qcom,icc.h>
 #include <dt-bindings/interconnect/qcom,sm8550-rpmh.h>
+#include <dt-bindings/interconnect/qcom,osm-l3.h>
 #include <dt-bindings/mailbox/qcom-ipcc.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/power/qcom,rpmhpd.h>
@@ -78,6 +79,13 @@
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			capacity-dmips-mhz = <326>;
 			dynamic-power-coefficient = <251>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_0: l2-cache {
 				compatible = "cache";
@@ -104,6 +112,13 @@
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			capacity-dmips-mhz = <326>;
 			dynamic-power-coefficient = <251>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_100: l2-cache {
 				compatible = "cache";
@@ -125,6 +140,13 @@
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			capacity-dmips-mhz = <326>;
 			dynamic-power-coefficient = <251>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_200: l2-cache {
 				compatible = "cache";
@@ -146,6 +168,13 @@
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			capacity-dmips-mhz = <693>;
 			dynamic-power-coefficient = <447>;
+			operating-points-v2 = <&cpu3_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_300: l2-cache {
 				compatible = "cache";
@@ -167,6 +196,13 @@
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			capacity-dmips-mhz = <693>;
 			dynamic-power-coefficient = <447>;
+			operating-points-v2 = <&cpu3_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_400: l2-cache {
 				compatible = "cache";
@@ -188,6 +224,13 @@
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			capacity-dmips-mhz = <693>;
 			dynamic-power-coefficient = <447>;
+			operating-points-v2 = <&cpu3_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_500: l2-cache {
 				compatible = "cache";
@@ -209,6 +252,13 @@
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			capacity-dmips-mhz = <693>;
 			dynamic-power-coefficient = <447>;
+			operating-points-v2 = <&cpu3_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_600: l2-cache {
 				compatible = "cache";
@@ -230,6 +280,13 @@
 			qcom,freq-domain = <&cpufreq_hw 2>;
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <1057>;
+			operating-points-v2 = <&cpu7_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &gem_noc SLAVE_LLCC QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&mc_virt MASTER_LLCC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+					<&epss_l3 MASTER_EPSS_L3_APPS
+					 &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			#cooling-cells = <2>;
 			l2_700: l2-cache {
 				compatible = "cache";
@@ -397,6 +454,306 @@
 		reg = <0 0xa0000000 0 0>;
 	};
 
+	cpu0_opp_table: opp-table-cpu0 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-307200000 {
+			opp-hz = /bits/ 64 <307200000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (307200 * 32)>;
+		};
+
+		opp-441600000 {
+			opp-hz = /bits/ 64 <441600000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (384000 * 32)>;
+		};
+
+		opp-556800000 {
+			opp-hz = /bits/ 64 <556800000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (499200 * 32)>;
+		};
+
+		opp-672000000 {
+			opp-hz = /bits/ 64 <672000000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (499200 * 32)>;
+		};
+
+		opp-787200000 {
+			opp-hz = /bits/ 64 <787200000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (729600 * 32)>;
+		};
+
+		opp-902400000 {
+			opp-hz = /bits/ 64 <902400000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (844800 * 32)>;
+		};
+
+		opp-1017600000 {
+			opp-hz = /bits/ 64 <1017600000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (940800 * 32)>;
+		};
+
+		opp-1113600000 {
+			opp-hz = /bits/ 64 <1113600000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (1056000 * 32)>;
+		};
+
+		opp-1228800000 {
+			opp-hz = /bits/ 64 <1228800000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (1152000 * 32)>;
+		};
+
+		opp-1344000000 {
+			opp-hz = /bits/ 64 <1344000000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (1267200 * 32)>;
+		};
+
+		opp-1459200000 {
+			opp-hz = /bits/ 64 <1459200000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (1267200 * 32)>;
+		};
+
+		opp-1555200000 {
+			opp-hz = /bits/ 64 <1555200000>;
+			opp-peak-kBps = <(466000 * 16) (768000 * 4) (1478400 * 32)>;
+		};
+
+		opp-1670400000 {
+			opp-hz = /bits/ 64 <1670400000>;
+			opp-peak-kBps = <(466000 * 16) (768000 * 4) (1478400 * 32)>;
+		};
+
+		opp-1785600000 {
+			opp-hz = /bits/ 64 <1785600000>;
+			opp-peak-kBps = <(466000 * 16) (768000 * 4) (1478400 * 32)>;
+		};
+
+		opp-1900800000 {
+			opp-hz = /bits/ 64 <1900800000>;
+			opp-peak-kBps = <(466000 * 16) (768000 * 4) (1689600 * 32)>;
+		};
+
+		opp-2016000000 {
+			opp-hz = /bits/ 64 <2016000000>;
+			opp-peak-kBps = <(600000 * 16) (1555000 * 4) (1804800 * 32)>;
+		};
+	};
+
+	cpu3_opp_table: opp-table-cpu3 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-499200000 {
+			opp-hz = /bits/ 64 <499200000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (307200 * 32)>;
+		};
+
+		opp-614400000 {
+			opp-hz = /bits/ 64 <614400000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (499200 * 32)>;
+		};
+
+		opp-729600000 {
+			opp-hz = /bits/ 64 <729600000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (499200 * 32)>;
+		};
+
+		opp-844800000 {
+			opp-hz = /bits/ 64 <844800000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (499200 * 32)>;
+		};
+
+		opp-940800000 {
+			opp-hz = /bits/ 64 <940800000>;
+			opp-peak-kBps = <(300000 * 16) (768000 * 4) (729600 * 32)>;
+		};
+
+		opp-1056000000 {
+			opp-hz = /bits/ 64 <1056000000>;
+			opp-peak-kBps = <(300000 * 16) (768000 * 4) (729600 * 32)>;
+		};
+
+		opp-1171200000 {
+			opp-hz = /bits/ 64 <1171200000>;
+			opp-peak-kBps = <(466000 * 16) (1555000 * 4) (940800 * 32)>;
+		};
+
+		opp-1286400000 {
+			opp-hz = /bits/ 64 <1286400000>;
+			opp-peak-kBps = <(466000 * 16) (1555000 * 4) (940800 * 32)>;
+		};
+
+		opp-1401600000 {
+			opp-hz = /bits/ 64 <1401600000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1056000 * 32)>;
+		};
+
+		opp-1536000000 {
+			opp-hz = /bits/ 64 <1536000000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1056000 * 32)>;
+		};
+
+		opp-1651200000 {
+			opp-hz = /bits/ 64 <1651200000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1267200 * 32)>;
+		};
+
+		opp-1785600000 {
+			opp-hz = /bits/ 64 <1785600000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1267200 * 32)>;
+		};
+
+		opp-1920000000 {
+			opp-hz = /bits/ 64 <1920000000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1267200 * 32)>;
+		};
+
+		opp-2054400000 {
+			opp-hz = /bits/ 64 <2054400000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2188800000 {
+			opp-hz = /bits/ 64 <2188800000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2323200000 {
+			opp-hz = /bits/ 64 <2323200000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2457600000 {
+			opp-hz = /bits/ 64 <2457600000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2592000000 {
+			opp-hz = /bits/ 64 <2592000000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2707200000 {
+			opp-hz = /bits/ 64 <2707200000>;
+			opp-peak-kBps = <(933000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2803200000 {
+			opp-hz = /bits/ 64 <2803200000>;
+			opp-peak-kBps = <(933000 * 16) (3686000 * 4) (1689600 * 32)>;
+		};
+	};
+
+	cpu7_opp_table: opp-table-cpu7 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-595200000 {
+			opp-hz = /bits/ 64 <595200000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (307200 * 32)>;
+		};
+
+		opp-729600000 {
+			opp-hz = /bits/ 64 <729600000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (499200 * 32)>;
+		};
+
+		opp-864000000 {
+			opp-hz = /bits/ 64 <864000000>;
+			opp-peak-kBps = <(300000 * 16) (547000 * 4) (499200 * 32)>;
+		};
+
+		opp-998400000 {
+			opp-hz = /bits/ 64 <998400000>;
+			opp-peak-kBps = <(300000 * 16) (768000 * 4) (729600 * 32)>;
+		};
+
+		opp-1132800000 {
+			opp-hz = /bits/ 64 <1132800000>;
+			opp-peak-kBps = <(300000 * 16) (768000 * 4) (729600 * 32)>;
+		};
+
+		opp-1248000000 {
+			opp-hz = /bits/ 64 <1248000000>;
+			opp-peak-kBps = <(466000 * 16) (1555000 * 4) (940800 * 32)>;
+		};
+
+		opp-1363200000 {
+			opp-hz = /bits/ 64 <1363200000>;
+			opp-peak-kBps = <(466000 * 16) (1555000 * 4) (940800 * 32)>;
+		};
+
+		opp-1478400000 {
+			opp-hz = /bits/ 64 <1478400000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1056000 * 32)>;
+		};
+
+		opp-1593600000 {
+			opp-hz = /bits/ 64 <1593600000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1056000 * 32)>;
+		};
+
+		opp-1708800000 {
+			opp-hz = /bits/ 64 <1708800000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1267200 * 32)>;
+		};
+
+		opp-1843200000 {
+			opp-hz = /bits/ 64 <1843200000>;
+			opp-peak-kBps = <(600000 * 16) (1708000 * 4) (1267200 * 32)>;
+		};
+
+		opp-1977600000 {
+			opp-hz = /bits/ 64 <1977600000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1267200 * 32)>;
+		};
+
+		opp-2092800000 {
+			opp-hz = /bits/ 64 <2092800000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2227200000 {
+			opp-hz = /bits/ 64 <2227200000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2342400000 {
+			opp-hz = /bits/ 64 <2342400000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2476800000 {
+			opp-hz = /bits/ 64 <2476800000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2592000000 {
+			opp-hz = /bits/ 64 <2592000000>;
+			opp-peak-kBps = <(806000 * 16) (2736000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2726400000 {
+			opp-hz = /bits/ 64 <2726400000>;
+			opp-peak-kBps = <(933000 * 16) (3686000 * 4) (1478400 * 32)>;
+		};
+
+		opp-2841600000 {
+			opp-hz = /bits/ 64 <2841600000>;
+			opp-peak-kBps = <(933000 * 16) (3686000 * 4) (1689600 * 32)>;
+		};
+
+		opp-2956800000 {
+			opp-hz = /bits/ 64 <2956800000>;
+			opp-peak-kBps = <(933000 * 16) (3686000 * 4) (1689600 * 32)>;
+		};
+
+		opp-3187200000 {
+			opp-hz = /bits/ 64 <3187200000>;
+			opp-peak-kBps = <(933000 * 16) (3686000 * 4) (1689600 * 32)>;
+		};
+	};
+
 	pmu-a510 {
 		compatible = "arm,cortex-a510-pmu";
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW &ppi_cluster0>;
@@ -5482,6 +5839,16 @@
 			};
 		};
 
+		epss_l3: interconnect@17d90000 {
+			compatible = "qcom,sm8550-epss-l3", "qcom,epss-l3";
+			reg = <0 0x17d90000 0 0x1000>;
+
+			clocks = <&bi_tcxo_div2>, <&gcc GCC_GPLL0>;
+			clock-names = "xo", "alternate";
+
+			#interconnect-cells = <1>;
+		};
+
 		cpufreq_hw: cpufreq@17d91000 {
 			compatible = "qcom,sm8550-cpufreq-epss", "qcom,cpufreq-epss";
 			reg = <0 0x17d91000 0 0x1000>,