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How to read CPU temp from TAU?

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Matti Palmström

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May 26, 2018, 6:30:02 PM5/26/18
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Hi

How do you read the cpu temperature from TAU on an iMac mini G4 (MPC7447a)?

According to /boot/config-4.16.0-1-powerpc it is compiled with TAU on
CONFIG_TAU=y
but I can't find a way to read it. I've tried with lm-sensors but no go there.

Regards
/M

Dennis Clarke

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May 26, 2018, 10:40:02 PM5/26/18
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Don't know what TAU is but do you have windfarm ?

root@nix:~# cat /sys/devices/platform/windfarm.0/cpu-temp-[0-4]
43.593
45.578
40.546
42.015

dc

Mathieu Malaterre

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May 27, 2018, 2:10:02 AM5/27/18
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What's the output of

$ cat /proc/cpuinfo

?

> Regards
> /M

Matti Palmström

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May 27, 2018, 7:00:02 PM5/27/18
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On Sun, May 27, 2018 at 7:59 AM, Mathieu Malaterre <ma...@debian.org> wrote:
> What's the output of
> $ cat /proc/cpuinfo
> ?

$ cat /proc/cpuinfo
processor       : 0
cpu             : 7447A, altivec supported
clock           : 1499.999994MHz
revision        : 1.5 (pvr 8003 0105)
bogomips        : 83.20

timebase        : 41600571
platform        : PowerMac
model           : PowerMac10,2
machine         : PowerMac10,2
motherboard     : PowerMac10,2 MacRISC3 Power Macintosh
detected as     : 287 (Mac mini (Late 2005))
pmac flags      : 00000010
L2 cache        : 512K unified
pmac-generation : NewWorld
Memory          : 1024 MB

Matti Palmström

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May 27, 2018, 7:00:02 PM5/27/18
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On Sun, May 27, 2018 at 4:28 AM, Dennis Clarke <dcl...@blastwave.org> wrote:

Don't know what TAU is but do you have windfarm ?

root@nix:~# cat /sys/devices/platform/windfarm.0/cpu-temp-[0-4]
43.593
45.578
40.546
42.015

Thermal Management Support, was on the G3 and G4 cpus. Think windfarm is G5. Might come in handy when I get around to get my powerpc iMac up and running though :-)

Mathieu Malaterre

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May 28, 2018, 2:20:02 AM5/28/18
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Temperature would have been displayed right there if your CPU had this option.

-M
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