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[3/4] arm64: dts: qcom: sm8250: Add BWMONs

Message ID 20230711-topic-sm638250_bwmon-v1-3-bd4bb96b0673@linaro.org
State Accepted
Commit 2a2bd124d4c01c53833a4f0c7fef4faf18351c51
Headers show
Series SM8250 + SM6350 BWMONs | expand

Commit Message

Konrad Dybcio July 11, 2023, 2:35 p.m. UTC
Add the CPU and LLC BWMONs (skip the NPU ones for now) on sm8250.

LPDDR4X levels are skipped, as LPDDR5 seems more popular with SM8250 and
voting for inexistent levels doesn't uptick the bus frequency, which
results in no increased bandwidth, which results in bwmon deciding we
shouldn't go higher.. you see the point!

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 122 +++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index e03007e23e91..80abd0bdc526 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -3694,6 +3694,128 @@  opp-202000000 {
 			};
 		};
 
+		pmu@9091000 {
+			compatible = "qcom,sm8250-llcc-bwmon", "qcom,sc7280-llcc-bwmon";
+			reg = <0 0x09091000 0 0x1000>;
+
+			interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+
+			interconnects = <&mc_virt MASTER_LLCC 3 &mc_virt SLAVE_EBI_CH0 3>;
+
+			operating-points-v2 = <&llcc_bwmon_opp_table>;
+
+			llcc_bwmon_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-800000 {
+					opp-peak-kBps = <(200 * 4 * 1000)>;
+				};
+
+				opp-1200000 {
+					opp-peak-kBps = <(300 * 4 * 1000)>;
+				};
+
+				opp-1804000 {
+					opp-peak-kBps = <(451 * 4 * 1000)>;
+				};
+
+				opp-2188000 {
+					opp-peak-kBps = <(547 * 4 * 1000)>;
+				};
+
+				opp-2724000 {
+					opp-peak-kBps = <(681 * 4 * 1000)>;
+				};
+
+				opp-3072000 {
+					opp-peak-kBps = <(768 * 4 * 1000)>;
+				};
+
+				opp-4068000 {
+					opp-peak-kBps = <(1017 * 4 * 1000)>;
+				};
+
+				/* 1353 MHz, LPDDR4X */
+
+				opp-6220000 {
+					opp-peak-kBps = <(1555 * 4 * 1000)>;
+				};
+
+				opp-7216000 {
+					opp-peak-kBps = <(1804 * 4 * 1000)>;
+				};
+
+				opp-8368000 {
+					opp-peak-kBps = <(2092 * 4 * 1000)>;
+				};
+
+				/* LPDDR5 */
+				opp-10944000 {
+					opp-peak-kBps = <(2736 * 4 * 1000)>;
+				};
+			};
+		};
+
+		pmu@90b6400 {
+			compatible = "qcom,sm8250-cpu-bwmon", "qcom,sdm845-bwmon";
+			reg = <0 0x090b6400 0 0x600>;
+
+			interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
+
+			interconnects = <&gem_noc MASTER_AMPSS_M0 3 &gem_noc SLAVE_LLCC 3>;
+			operating-points-v2 = <&cpu_bwmon_opp_table>;
+
+			cpu_bwmon_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-800000 {
+					opp-peak-kBps = <(200 * 4 * 1000)>;
+				};
+
+				opp-1804000 {
+					opp-peak-kBps = <(451 * 4 * 1000)>;
+				};
+
+				opp-2188000 {
+					opp-peak-kBps = <(547 * 4 * 1000)>;
+				};
+
+				opp-2724000 {
+					opp-peak-kBps = <(681 * 4 * 1000)>;
+				};
+
+				opp-3072000 {
+					opp-peak-kBps = <(768 * 4 * 1000)>;
+				};
+
+				/* 1017MHz, 1353 MHz, LPDDR4X */
+
+				opp-6220000 {
+					opp-peak-kBps = <(1555 * 4 * 1000)>;
+				};
+
+				opp-6832000 {
+					opp-peak-kBps = <(1708 * 4 * 1000)>;
+				};
+
+				opp-8368000 {
+					opp-peak-kBps = <(2092 * 4 * 1000)>;
+				};
+
+				/* 2133MHz, LPDDR4X */
+
+				/* LPDDR5 */
+				opp-10944000 {
+					opp-peak-kBps = <(2736 * 4 * 1000)>;
+				};
+
+				/* LPDDR5 */
+				opp-12784000 {
+					opp-peak-kBps = <(3196 * 4 * 1000)>;
+				};
+			};
+		};
+
 		dc_noc: interconnect@90c0000 {
 			compatible = "qcom,sm8250-dc-noc";
 			reg = <0 0x090c0000 0 0x4200>;