1.\" $NetBSD: coretemp.4,v 1.5 2020/11/14 20:04:46 wiz Exp $ 2.\"- 3.\" Copyright (c) 2007 Juan Romero Pardines. 4.\" Copyright (c) 2007 Dag-Erling Co�dan Sm�rgrav 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $FreeBSD: src/share/man/man4/coretemp.4,v 1.4 2007/10/15 20:00:19 netchild Exp $ 29.\" 30.Dd February 23, 2010 31.Dt CORETEMP 4 x86 32.Os 33.Sh NAME 34.Nm coretemp 35.Nd Intel Core on-die digital thermal sensor 36.Sh SYNOPSIS 37.Cd "coretemp* at cpu?" 38.Sh DESCRIPTION 39The 40.Nm 41driver provides support for the on-die digital thermal sensor present 42on Intel Core and newer CPUs. 43.Pp 44The temperatures can be observed by using the 45.Xr envsys 4 46.Tn API 47or the 48.Xr envstat 8 49command. 50Temperatures are reported for each core separately. 51.Sh EVENTS 52The 53.Nm 54driver is able to send a 55.Em critical 56event to the 57.Xr powerd 8 58daemon. 59The script 60.Pa /etc/powerd/scripts/sensor_temperature 61will be executed by the daemon (if running) when the limit has been reached. 62.Sh SEE ALSO 63.Xr envsys 4 , 64.Xr envstat 8 , 65.Xr powerd 8 66.Rs 67.%A Michael Berktold 68.%A Tian Tian (Intel Corporation) 69.%T CPU Monitoring With DTS/PECI, White Paper 70.%D September 2010 71.%U http://edc.intel.com/Download.aspx?id=2612 72.Re 73.Sh HISTORY 74The 75.Nm 76driver first appeared in 77.Fx 7.0 . 78It was later ported to 79.Nx 5.0 . 80.Sh AUTHORS 81.An -nosplit 82The 83.Nm 84driver was written by 85.An Rui Paulo Aq Mt rpaulo@FreeBSD.org 86as part of a Google Summer of Code project. 87It was adapted to 88.Nx 89by 90.An Juan Romero Pardines . 91