Attachment 169882 Details for Bug 209202 – Patch to add additional temp level and longer hysteresis to PowerMac thermal management

[patch] Patch to add additional temp level and longer hysteresis to PowerMac thermal management

pmac_thermal.patch (text/plain), 2.71 KB, created by gmbroome on 2016-05-02 14:44:13 UTC

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Creator: gmbroome

Created: 2016-05-02 14:44:13 UTC

Size: 2.71 KB

patch

obsolete

>diff --git a/sys/powerpc/powermac/powermac_thermal.c b/sys/powerpc/powermac/powermac_thermal.c
>index 250c9f0..725482b 100644
>--- a/sys/powerpc/powermac/powermac_thermal.c
>+++ b/sys/powerpc/powermac/powermac_thermal.c
>@@ -43,7 +43,7 @@ __FBSDID("$FreeBSD$");
> #include "powermac_thermal.h"
> 
> /* A 10 second timer for spinning down fans. */
>-#define FAN_HYSTERESIS_TIMER	10
>+#define FAN_HYSTERESIS_TIMER	30
> 
> static void fan_management_proc(void);
> static void pmac_therm_manage_fans(void);
>@@ -143,10 +143,10 @@ pmac_therm_manage_fans(void)
> 		average_excess = max_excess_zone = 0;
> 		SLIST_FOREACH(sensor, &sensors, entries) {
> 			temp = imin(sensor->last_val,
>-			    sensor->sensor->max_temp);
>+			    sensor->sensor->high_temp);
> 			frac_excess = (temp -
> 			    sensor->sensor->target_temp)*100 /
>-			    (sensor->sensor->max_temp - temp + 1);
>+			    (sensor->sensor->high_temp - temp + 1);
> 			if (frac_excess < 0)
> 				frac_excess = 0;
> 			if (sensor->sensor->zone == fan->fan->zone) {
>diff --git a/sys/powerpc/powermac/powermac_thermal.h b/sys/powerpc/powermac/powermac_thermal.h
>index 424c612..1059f95 100644
>--- a/sys/powerpc/powermac/powermac_thermal.h
>+++ b/sys/powerpc/powermac/powermac_thermal.h
>@@ -42,7 +42,7 @@ struct pmac_fan {
> };
> 
> struct pmac_therm {
>-	int target_temp, max_temp;	/* Tenths of a degree K */
>+	int target_temp, high_temp, max_temp;	/* Tenths of a degree K */
> 	
> 	char name[32];
> 	int zone;
>diff --git a/sys/powerpc/powermac/smu.c b/sys/powerpc/powermac/smu.c
>index cbc0e35..d7c9db7 100644
>--- a/sys/powerpc/powermac/smu.c
>+++ b/sys/powerpc/powermac/smu.c
>@@ -1245,8 +1245,9 @@ smu_attach_sensors(device_t dev, phandle_t sensroot)
> 
> 		if (sens->type == SMU_TEMP_SENSOR) {
> 			/* Make up some numbers */
>-			sens->therm.target_temp = 500 + 2732; /* 50 C */
>-			sens->therm.max_temp = 900 + 2732; /* 90 C */
>+			sens->therm.target_temp = 400 + 2732; /* 40 C */
>+           sens->therm.high_temp = 750 + 2732; /* 75 C */
>+           sens->therm.max_temp = 950 + 2732; /* 95 C */
> 
> 			sens->therm.read =
> 			    (int (*)(struct pmac_therm *))smu_sensor_read;
>diff --git a/sys/powerpc/powermac/smusat.c b/sys/powerpc/powermac/smusat.c
>index 2e37ae4..5dbb73c 100644
>--- a/sys/powerpc/powermac/smusat.c
>+++ b/sys/powerpc/powermac/smusat.c
>@@ -184,8 +184,9 @@ smusat_attach(device_t dev)
> 
> 		if (sens->type == SMU_TEMP_SENSOR) {
> 			/* Make up some numbers */
>-			sens->therm.target_temp = 500 + 2732; /* 50 C */
>-			sens->therm.max_temp = 900 + 2732; /* 90 C */
>+			sens->therm.target_temp = 400 + 2732; /* 40 C */
>+			sens->therm.high_temp = 750 + 2732; /* 75 C */
>+			sens->therm.max_temp = 950 + 2732; /* 95 C */
> 			sens->therm.read =
> 			    (int (*)(struct pmac_therm *))smusat_sensor_read;
> 			pmac_thermal_sensor_register(&sens->therm);

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Attachments on bug 209202: 169882