LinuxLists.cc - =?UTF-8?Q?Re: [lm-sensors] [PATCH] hwmon: Add driver for VIA CPU core temperature= ?=

2009-06-12 14:55:10

Subject: =?UTF-8?Q?Re: [lm-sensors] [PATCH] hwmon: Add driver for VIA CPU core temperature= ?=

> >
> > Ah, 25 degrees C is room temperature - real hard for the junction
temperature
> > to be 25 degrees C with power applied; lacking an infinitely perfect
heatsink.
> >
> > Look for an "off by one" error in shifting or masking the value.
>
> there is no shifting and the masking is 0xffffffff :)
>
> it might be that the BIOS is doing something wrong when programming the
> calibration MSR's at early botoup. I would need the contents of MSR
> 0x1160 ... 0x116C as well as 0x1152 and 0x1153 to be able to determine
that.
>

This is what I get on VB7002.. vith C7-D cpu:

DEBNAS:/home# sensors

via-cputemp-isa-0000
Adapter: ISA adapter
Core 0: +27.0 C

DEBNAS:/home# for r in 0x1160 0x1161 0x1162 0x1163 0x1164 0x1165 0x1166
0x1167
0x1168 0x1169 0x116a 0x116b 0x116c 0x1152 0x1153 ; do ./rdmsr $r ; done
MSR register 0x1160 => 08:04:98:10:b8:0b:6f:f4
MSR register 0x1161 => 08:04:98:10:b8:0a:8f:f4
MSR register 0x1162 => 08:04:98:10:b7:f7:7f:f4
MSR register 0x1163 => 08:04:98:10:b7:f1:1f:f4
MSR register 0x1164 => 08:04:98:10:b7:ee:cf:f4
MSR register 0x1165 => 08:04:98:10:b8:0b:4f:f4
MSR register 0x1166 => 08:04:98:10:b7:f7:7f:f4
MSR register 0x1167 => 08:04:98:10:b7:ef:8f:f4
MSR register 0x1168 => 08:04:98:10:b7:fc:3f:f4
MSR register 0x1169 => 08:04:98:10:b8:0d:6f:f4
MSR register 0x116a => 08:04:98:10:b7:f3:8f:f4
MSR register 0x116b => 08:04:98:10:b8:0b:bf:f4
MSR register 0x116c => 08:04:98:10:b8:00:6f:f4
MSR register 0x1152 => 08:04:98:10:b7:f2:2f:f4
MSR register 0x1153 => 08:04:98:10:b8:0b:3f:f4
DEBNAS:/home#

Tomaz Mertelj

2009-06-12 14:57:35

by Michael S. Zick

[permalink] [raw]

Subject: Re: [lm-sensors] [PATCH] hwmon: Add driver for VIA CPU core temperature

On Fri June 12 2009, [email protected] wrote:
> > >
> > > Ah, 25 degrees C is room temperature - real hard for the junction
> temperature
> > > to be 25 degrees C with power applied; lacking an infinitely perfect
> heatsink.
> > >
> > > Look for an "off by one" error in shifting or masking the value.
> >
> > there is no shifting and the masking is 0xffffffff :)
> >
> > it might be that the BIOS is doing something wrong when programming the
> > calibration MSR's at early botoup. I would need the contents of MSR
> > 0x1160 ... 0x116C as well as 0x1152 and 0x1153 to be able to determine
> that.
> >
>
> This is what I get on VB7002.. vith C7-D cpu:
>
>
> DEBNAS:/home# sensors
>
> via-cputemp-isa-0000
> Adapter: ISA adapter
> Core 0: +27.0 C
>
> DEBNAS:/home# for r in 0x1160 0x1161 0x1162 0x1163 0x1164 0x1165 0x1166
> 0x1167
> 0x1168 0x1169 0x116a 0x116b 0x116c 0x1152 0x1153 ; do ./rdmsr $r ; done
> MSR register 0x1160 => 08:04:98:10:b8:0b:6f:f4
> MSR register 0x1161 => 08:04:98:10:b8:0a:8f:f4
> MSR register 0x1162 => 08:04:98:10:b7:f7:7f:f4
> MSR register 0x1163 => 08:04:98:10:b7:f1:1f:f4
> MSR register 0x1164 => 08:04:98:10:b7:ee:cf:f4
> MSR register 0x1165 => 08:04:98:10:b8:0b:4f:f4
> MSR register 0x1166 => 08:04:98:10:b7:f7:7f:f4
> MSR register 0x1167 => 08:04:98:10:b7:ef:8f:f4
> MSR register 0x1168 => 08:04:98:10:b7:fc:3f:f4
> MSR register 0x1169 => 08:04:98:10:b8:0d:6f:f4
> MSR register 0x116a => 08:04:98:10:b7:f3:8f:f4
> MSR register 0x116b => 08:04:98:10:b8:0b:bf:f4
> MSR register 0x116c => 08:04:98:10:b8:00:6f:f4
> MSR register 0x1152 => 08:04:98:10:b7:f2:2f:f4
> MSR register 0x1153 => 08:04:98:10:b8:0b:3f:f4
> DEBNAS:/home#
>
>

The author had a problem in that routine -
try this one (32bit machines only) -

Mike
> Tomaz Mertelj
>
>
>

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2009-06-12 15:12:45

by Michael S. Zick

[permalink] [raw]

Subject: Re: [lm-sensors] [PATCH] hwmon: Add driver for VIA CPU core temperature

On Fri June 12 2009, Michael S. Zick wrote:
> On Fri June 12 2009, [email protected] wrote:
> > > >
> > > > Ah, 25 degrees C is room temperature - real hard for the junction
> > temperature
> > > > to be 25 degrees C with power applied; lacking an infinitely perfect
> > heatsink.
> > > >
> > > > Look for an "off by one" error in shifting or masking the value.
> > >
> > > there is no shifting and the masking is 0xffffffff :)
> > >
> > > it might be that the BIOS is doing something wrong when programming the
> > > calibration MSR's at early botoup. I would need the contents of MSR
> > > 0x1160 ... 0x116C as well as 0x1152 and 0x1153 to be able to determine
> > that.
> > >
> >
> > This is what I get on VB7002.. vith C7-D cpu:
> >
> >
> > DEBNAS:/home# sensors
> >
> > via-cputemp-isa-0000
> > Adapter: ISA adapter
> > Core 0: +27.0 C
> >
> > DEBNAS:/home# for r in 0x1160 0x1161 0x1162 0x1163 0x1164 0x1165 0x1166
> > 0x1167
> > 0x1168 0x1169 0x116a 0x116b 0x116c 0x1152 0x1153 ; do ./rdmsr $r ; done
> > MSR register 0x1160 => 08:04:98:10:b8:0b:6f:f4
> > MSR register 0x1161 => 08:04:98:10:b8:0a:8f:f4
> > MSR register 0x1162 => 08:04:98:10:b7:f7:7f:f4
> > MSR register 0x1163 => 08:04:98:10:b7:f1:1f:f4
> > MSR register 0x1164 => 08:04:98:10:b7:ee:cf:f4
> > MSR register 0x1165 => 08:04:98:10:b8:0b:4f:f4
> > MSR register 0x1166 => 08:04:98:10:b7:f7:7f:f4
> > MSR register 0x1167 => 08:04:98:10:b7:ef:8f:f4
> > MSR register 0x1168 => 08:04:98:10:b7:fc:3f:f4
> > MSR register 0x1169 => 08:04:98:10:b8:0d:6f:f4
> > MSR register 0x116a => 08:04:98:10:b7:f3:8f:f4
> > MSR register 0x116b => 08:04:98:10:b8:0b:bf:f4
> > MSR register 0x116c => 08:04:98:10:b8:00:6f:f4
> > MSR register 0x1152 => 08:04:98:10:b7:f2:2f:f4
> > MSR register 0x1153 => 08:04:98:10:b8:0b:3f:f4
> > DEBNAS:/home#
> >
> >
>
> The author had a problem in that routine -
> try this one (32bit machines only) -
>

That tool has more than one problem -
Try installing your distro's msr-tools package instead.

Mike
> Mike
> > Tomaz Mertelj
> >
> >
> >
>
>
>