Ben Kaduk wrote:
On 8/15/07, Henrik Brix Andersen <[EMAIL PROTECTED]> wrote:
On Wed, Aug 15, 2007 at 07:26:03PM +0000, Dag-Erling Smorgrav wrote:
des 2007-08-15 19:26:03 UTC
FreeBSD src repository
Modified files:
sys/amd64/include specialreg.h
sys/conf files.amd64 files.i386
sys/i386/include specialreg.h
sys/modules Makefile
sys/amd64/conf NOTES
sys/i386/conf NOTES
Added files:
sys/dev/coretemp coretemp.c
sys/modules/coretemp Makefile
Log:
Add a driver for the on-die digital thermal sensor found on Intel Core
and newer CPUs (including Core 2 and Core / Core 2 based Xeons). The
driver attaches to each cpu device and creates a sysctl node in that
device's sysctl context (dev.cpu.N.temperature). When invoked, the
handler binds to the appropriate CPU to ensure a correct reading.
Submitted by: Rui Paulo <[EMAIL PROTECTED]>
Sponsored by: Google Summer of Code 2007
Tested by: des, marcus, Constantine A. Murenin, Ian FREISLICH
Approved by: re (kensmith)
MFC after: 3 weeks
Thanks for working on this. I just tested it on my Core Duo laptop (an
IBM/Lenovo X60s with an L2400 @ 1.66GHz) - it doesn't seem to provide
useful readings:
$ uname -a
FreeBSD lothlorien.brixandersen.dk 7.0-CURRENT FreeBSD 7.0-CURRENT #63: Wed Aug
15 22:13:01 CEST 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/LOTHLORIEN
i386
$ dmesg | grep coretemp
coretemp0: <CPU On-Die Thermal Sensors> on cpu0
coretemp1: <CPU On-Die Thermal Sensors> on cpu1
$ sysctl dev.cpu.0.temperature
dev.cpu.0.temperature: -50
$ sysctl dev.cpu.1.temperature
dev.cpu.1.temperature: -49
The original patch reported the delta between the maximum temperature
(allowed before auto-shutdown?) and the actual temperature. It seems
This is a different driver than the one written by [EMAIL PROTECTED]
--
Rui Paulo
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