1.\"- 2.\" Copyright (c) 2008 Rui Paulo 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd April 8, 2008 29.Dt AMDTEMP 4 30.Os 31.Sh NAME 32.Nm amdtemp 33.Nd device driver for AMD K8, K10 and K11 on-die digital thermal sensor 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36place the following line in your 37kernel configuration file: 38.Bd -ragged -offset indent 39.Cd "device amdtemp" 40.Ed 41.Pp 42Alternatively, to load the driver as a 43module at boot time, place the following line in 44.Xr loader.conf 5 : 45.Bd -literal -offset indent 46amdtemp_load="YES" 47.Ed 48.Sh DESCRIPTION 49The 50.Nm 51driver provides support for the on-die digital thermal sensor present 52in AMD K8, K10 and K11 processors. 53.Pp 54For the K8 family, the 55.Nm 56driver reports each core's temperature through a sysctl node in the 57corresponding CPU devices's sysctl tree, named 58.Va dev.amdtemp.%d.sensor{0,1}.core{0,1} . 59The driver also creates 60.Va dev.cpu.%d.temperature 61displaying the maximum temperature of the two sensors 62located in each CPU core. 63.Pp 64For the K10 and K11 families, the driver creates 65.Va dev.cpu.%d.temperature 66with the temperature of each core. 67.Sh SEE ALSO 68.Xr sysctl 8 69.Sh HISTORY 70The 71.Nm 72driver first appeared in 73.Fx 7.1 . 74.Sh AUTHORS 75.An Rui Paulo Aq rpaulo@FreeBSD.org 76.An Norikatsu Shigemura Aq nork@FreeBSD.org 77.Sh BUGS 78AMD K9 is not supported because temperature reporting has been replaced 79by Maltese. 80