Date: Mon, 11 Feb 2008 20:31:24 +0000 From: Rui Paulo <rpaulo@freebsd.org> To: Scot Hetzel <swhetzel@gmail.com> Cc: freebsd-amd64@freebsd.org Subject: Re: CFT: k8temp driver Message-ID: <80242296-1201-4BA0-BCF9-736DB583EAE4@freebsd.org> In-Reply-To: <790a9fff0802100919wa1018f2t3ec0e71efb62aa00@mail.gmail.com> References: <A611E395-3531-4026-B8B3-5EFA72BA48E1@FreeBSD.org> <790a9fff0802100919wa1018f2t3ec0e71efb62aa00@mail.gmail.com>
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On Feb 10, 2008, at 5:19 PM, Scot Hetzel wrote: > On 2/10/08, Rui Paulo <rpaulo@freebsd.org> wrote: >> Hi, >> Some AMD systems have two thermal sensors on both cores. I wrote a >> simple driver to access these temperatures, but I don't have a system >> to test. If anyone has a AMD K8 system, I would love if you could >> test >> the k8temp driver that I wrote based on the Linux one. >> >> Get it at: >> http://people.freebsd.org/~rpaulo/k8temp.tgz >> >> Compile/test with: >> $ tar xzvf k8temp.tgz && cd k8temp >> $ make SYSDIR=/path/to/src/sys >> # kldload ./k8temp.ko >> >> This is still pre-alpha quality, so please don't use it on a >> production system. >> >> Thanks in advance. > > I have been using sysutils/k8temp from ports to get the temperature > for my system: > > # k8temp -d > CPUID: Vendor: AuthenticAMD, Id=0x20f42 Model=4 Family=15 Stepping=2 > Advanced Power Management=0x3f > Temperature sensor: Yes > Frequency ID control: Yes > Voltage ID control: Yes > THERMTRIP support: Yes > HW Thermal control: Yes > SW Thermal control: Yes > 100MHz multipliers: No > HW P-State control: No > TSC Invariant: No > Thermtrip=0x00000b24 (CurTmp=0x00 (-49c) TjOffset=0x00 > DiodeOffset=0x0b (0c)) > Thermtrip=0x006d0b20 (CurTmp=0x6d (60c) TjOffset=0x00 > DiodeOffset=0x0b (0c)) > CPU 0 Core 1 Sensor 0: 60c > > After compiling and loading the module, I am seeing these temperatures > in the sysctl tree: > > # sysctl dev.k8temp > dev.k8temp.0.%desc: AMD K8 Thermal Sensors > dev.k8temp.0.%driver: k8temp > dev.k8temp.0.%parent: hostb4 > dev.k8temp.0.sensor0.core0: 59 > dev.k8temp.0.sensor0.core1: -49 > dev.k8temp.0.sensor1.core0: 59 > dev.k8temp.0.sensor1.core1: 59 > > Thanks for creating the k8temp module. Seems to be working, thanks for testing. -49 means "temperature invalid", BTW. Regards. -- Rui Paulo
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