On Thu, Nov 01, 2012 at 02:18:53PM -0700, Phil Pokorny wrote: > On Thu, Nov 1, 2012 at 1:54 PM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > > On Thu, Nov 01, 2012 at 07:12:08PM +0100, Jean Delvare wrote: > > > On Thu, 1 Nov 2012 10:17:07 -0700, Guenter Roeck wrote: > > > > On Thu, Nov 01, 2012 at 05:37:57PM +0100, Jean Delvare wrote: > > > > > On an IT8720F chip with temp3 configured for PECI: > > > > > > > > > > temp1_offset: 0 > > > > > temp2_offset: 0 > > > > > temp3_offset: -128000 > > > > > > > > > > I'm unsure how to interpret this -128000... This value is definitely > > > > > not neutral, doesn't sound very realistic. I would expect a positive > > > > > number for PECI. Maybe the offset register should be treated as > > > > > unsigned in PECI mode? Or maybe its value is irrelevant for the > > IT8720F > > > > > in PECI mode. > > > > > > > > > > # grep . /sys/class/hwmon/hwmon2/device/temp3* > > > > > /sys/class/hwmon/hwmon2/device/temp3_alarm:0 > > > > > /sys/class/hwmon/hwmon2/device/temp3_beep:1 > > > > > /sys/class/hwmon/hwmon2/device/temp3_input:25000 > > > > > /sys/class/hwmon/hwmon2/device/temp3_max:70000 > > > > > /sys/class/hwmon/hwmon2/device/temp3_min:127000 > > > > > /sys/class/hwmon/hwmon2/device/temp3_offset:-128000 > > > > > /sys/class/hwmon/hwmon2/device/temp3_type:6 > > > > > > > > > > This is with an it87 driver including all your recent patches. It you > > > > > have ideas or theories, I'm interested. > > > > > > > > > Hi Jean, > > > > > > > > I agree. The alternative (+128 degrees C) sounds a bit high, though. > > > > Maybe there is another register on IT8720F to store Tjmax ? Did you > > check > > > > in the register map if there is a register value that happens to match > > it ? > > > > > > How would I know which value I am looking for? k10temp says this: > > > high = +70.0°C, crit = +90.0°C, hyst = +87.0°C > > > but the monitored value doesn't match it87's temp3. > > > > > > I don't know what AMD uses as equivalent of Tjmax - maybe they > > use a fixed value of 128°C. > > > > Wouldn't it be 70 degC? That's the "Tcontrol" value they always > reference. Anything over 70deg C on the "Tcontrol" scale is "HOT" > One would think so, but that doesn't fit with Jean's observation that he has to enter -128 degC (or possibly 128 degC) for a decent temperature reading. Jean, does the temperature increase if you put load onto the system ? And which value in temp3_offset makes the reported temperature match the temperature reported by k10temp ? Thanks, Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
