[PATCH v4 4/4] ARM64: mt8195: Use thermal aggregation for big and little cpu

Alexandre Bailon
2024-06-13T13:24:22Z

This uses the thermal aggregation for the mt8195 to get the maximal
temperature of big and little cpu clusters.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
arch/arm64/boot/dts/mediatek/mt8195.dtsi | 210 +++--------------------
1 file changed, 25 insertions(+), 185 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index 5d8b68f86ce4..90778c609ceb 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -3600,50 +3600,30 @@ dp_tx: dp-tx@1c600000 {
};

thermal_zones: thermal-zones {
- cpu0-thermal {
+ cpu-little {
polling-delay = <1000>;
- polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU0>;
+ polling-delay-passive = <100>;
+ thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU0>,
+ <&lvts_mcu MT8195_MCU_LITTLE_CPU1>,
+ <&lvts_mcu MT8195_MCU_LITTLE_CPU2>,
+ <&lvts_mcu MT8195_MCU_LITTLE_CPU3>;
+ sustainable-power = <1500>;

trips {
- cpu0_alert: trip-alert {
- temperature = <85000>;
+ cpu_little_threshold: trip-point {
+ temperature = <68000>;
hysteresis = <2000>;
type = "passive";
};

- cpu0_crit: trip-crit {
- temperature = <100000>;
- hysteresis = <2000>;
- type = "critical";
- };
- };
-
- cooling-maps {
- map0 {
- trip = <&cpu0_alert>;
- cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
- };
- };
- };
-
- cpu1-thermal {
- polling-delay = <1000>;
- polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU1>;
-
- trips {
- cpu1_alert: trip-alert {
+ cpu_little_target: target {
temperature = <85000>;
hysteresis = <2000>;
type = "passive";
};

- cpu1_crit: trip-crit {
- temperature = <100000>;
+ cpu_little_soc_max_crit: soc-max-crit {
+ temperature = <115000>;
hysteresis = <2000>;
type = "critical";
};
@@ -3651,7 +3631,7 @@ cpu1_crit: trip-crit {

cooling-maps {
map0 {
- trip = <&cpu1_alert>;
+ trip = <&cpu_little_target>;
cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
@@ -3660,170 +3640,30 @@ map0 {
};
};

- cpu2-thermal {
+ cpu-big {
polling-delay = <1000>;
polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU2>;
+ thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU0>,
+ <&lvts_mcu MT8195_MCU_BIG_CPU1>,
+ <&lvts_mcu MT8195_MCU_BIG_CPU2>,
+ <&lvts_mcu MT8195_MCU_BIG_CPU3>;
+ sustainable-power = <1500>;

trips {
- cpu2_alert: trip-alert {
- temperature = <85000>;
+ cpu_big_threshold: trip-point {
+ temperature = <68000>;
hysteresis = <2000>;
type = "passive";
};

- cpu2_crit: trip-crit {
- temperature = <100000>;
- hysteresis = <2000>;
- type = "critical";
- };
- };
-
- cooling-maps {
- map0 {
- trip = <&cpu2_alert>;
- cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
- };
- };
- };
-
- cpu3-thermal {
- polling-delay = <1000>;
- polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU3>;
-
- trips {
- cpu3_alert: trip-alert {
- temperature = <85000>;
- hysteresis = <2000>;
- type = "passive";
- };
-
- cpu3_crit: trip-crit {
- temperature = <100000>;
- hysteresis = <2000>;
- type = "critical";
- };
- };
-
- cooling-maps {
- map0 {
- trip = <&cpu3_alert>;
- cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
- };
- };
- };
-
- cpu4-thermal {
- polling-delay = <1000>;
- polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU0>;
-
- trips {
- cpu4_alert: trip-alert {
+ cpu_big_target: target {
temperature = <85000>;
hysteresis = <2000>;
type = "passive";
};

- cpu4_crit: trip-crit {
- temperature = <100000>;
- hysteresis = <2000>;
- type = "critical";
- };
- };
-
- cooling-maps {
- map0 {
- trip = <&cpu4_alert>;
- cooling-device = <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
- };
- };
- };
-
- cpu5-thermal {
- polling-delay = <1000>;
- polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU1>;
-
- trips {
- cpu5_alert: trip-alert {
- temperature = <85000>;
- hysteresis = <2000>;
- type = "passive";
- };
-
- cpu5_crit: trip-crit {
- temperature = <100000>;
- hysteresis = <2000>;
- type = "critical";
- };
- };
-
- cooling-maps {
- map0 {
- trip = <&cpu5_alert>;
- cooling-device = <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
- };
- };
- };
-
- cpu6-thermal {
- polling-delay = <1000>;
- polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU2>;
-
- trips {
- cpu6_alert: trip-alert {
- temperature = <85000>;
- hysteresis = <2000>;
- type = "passive";
- };
-
- cpu6_crit: trip-crit {
- temperature = <100000>;
- hysteresis = <2000>;
- type = "critical";
- };
- };
-
- cooling-maps {
- map0 {
- trip = <&cpu6_alert>;
- cooling-device = <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
- <&cpu7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
- };
- };
- };
-
- cpu7-thermal {
- polling-delay = <1000>;
- polling-delay-passive = <250>;
- thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU3>;
-
- trips {
- cpu7_alert: trip-alert {
- temperature = <85000>;
- hysteresis = <2000>;
- type = "passive";
- };
-
- cpu7_crit: trip-crit {
- temperature = <100000>;
+ cpu_big_soc_max_crit: soc-max-crit {
+ temperature = <115000>;
hysteresis = <2000>;
type = "critical";
};
@@ -3831,7 +3671,7 @@ cpu7_crit: trip-crit {

cooling-maps {
map0 {
- trip = <&cpu7_alert>;
+ trip = <&cpu_big_target>;
cooling-device = <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
--
2.44.1