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share/man/man4/pchtherm.4
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.\" | |||||
.\" Copyright (c) 2020 Takanori Watanabe <takawata@freebsd.org> | |||||
.\" | |||||
.\" Redistribution and use in source and binary forms, with or without | |||||
.\" modification, are permitted provided that the following conditions | |||||
.\" are met: | |||||
.\" 1. Redistributions of source code must retain the above copyright | |||||
.\" notice, this list of conditions and the following disclaimer. | |||||
.\" 2. Redistributions in binary form must reproduce the above copyright | |||||
.\" notice, this list of conditions and the following disclaimer in the | |||||
.\" documentation and/or other materials provided with the distribution. | |||||
.\" | |||||
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |||||
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||||
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |||||
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |||||
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |||||
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |||||
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||||
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |||||
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||||
.\" | |||||
.\" $FreeBSD$ | |||||
.\" | |||||
.Dd March 15, 2020 | |||||
.Dt pchtherm 4 | |||||
.Os | |||||
.Sh NAME | |||||
.Nm pchtherm | |||||
.Nd Intel PCH thermal subsystem | |||||
.Sh SYNOPSIS | |||||
.Cd "device pci" | |||||
.Cd "device pchtherm" | |||||
.Sh DESCRIPTION | |||||
The | |||||
.Nm | |||||
driver provides access to sensor data and configuration | |||||
installed in Intel PCH chipset. | |||||
.Nm | |||||
configuration register. | |||||
.Pp | |||||
The access to | |||||
.Nm | |||||
data is made via the | |||||
.Xr sysctl 8 | |||||
interface: | |||||
.Bd -literal | |||||
dev.pchtherm.0.ctt: 115.0C | |||||
dev.pchtherm.0.temperature: 28.5C | |||||
dev.pchtherm.0.t2temp: 91.0C | |||||
driesm: templature/s/temperature | |||||
dev.pchtherm.0.t1temp: 86.0C | |||||
dev.pchtherm.0.t0temp: 81.0C | |||||
dev.pchtherm.0.tahv: 83.0C | |||||
dev.pchtherm.0.talv: 30.0C | |||||
dev.pchtherm.0.pmtime: 32 | |||||
dev.pchtherm.0.pmtemp: 50.0C | |||||
dev.pchtherm.0.%parent: pci0 | |||||
dev.pchtherm.0.%pnpinfo: vendor=0x8086 device=0x9d31 subvendor=0x17aa subdevice=0x2256 class=0x118000 | |||||
dev.pchtherm.0.%location: slot=20 function=2 dbsf=pci0:0:20:2 | |||||
dev.pchtherm.0.%driver: pchtherm | |||||
dev.pchtherm.0.%desc: Skylake PCH Thermal Subsystem | |||||
dev.pchtherm.%parent: | |||||
.Ed | |||||
.Bl -tag -width ".Va dev.pchtherm.%d.pch_hot_level" | |||||
.It Va dev.pchtherm.%d.temperature | |||||
Is the read-only value of the current temperature read by the sensor. | |||||
.It Va dev.pchtherm.%d.ctt | |||||
When temperature reached this value, system will shutdown. This will not appear when this feature is disabled and locked down. | |||||
danfeUnsubmitted Not Done Inline ActionsWhen reached ... will shutdown — sequence of tenses seems wrong here, suggest getting advice from a native speaker. Also, each sentence should start on a new line (after period). danfe: When //reached// ... //will shutdown// — sequence of tenses seems wrong here, suggest getting… | |||||
.It Va dev.pchtherm.%d.t0temp | |||||
When temperature is under this value, system will be in T0 state. | |||||
.It Va dev.pchtherm.%d.t1temp | |||||
When temperature is over t0temp and under this value, system will be in T1 state. | |||||
danfeUnsubmitted Not Done Inline ActionsShould it be spelled as .Va t0temp? danfe: Should it be spelled as `.Va t0temp`? | |||||
.It Va dev.pchtherm.%d.t2temp | |||||
When temperature is over t1temp and under this value, system will be in T2 state. | |||||
danfeUnsubmitted Not Done Inline ActionsShould it be spelled as .Va t1temp? danfe: Should it be spelled as `.Va t1temp`? | |||||
Over this value, system will be in T3 state. | |||||
Not Done Inline Actionsmissing space "andunder" val_packett.cool: missing space "andunder" | |||||
.It Va dev.pchtherm.%d.talv | |||||
Lower alart value. This will not appear when sensor enable bit is locked down and the value is zero(which will show -50.0C). | |||||
danfeUnsubmitted Not Done Inline ActionsMissing newline after dot (end of sentence) and space before opening parenthesis. danfe: Missing newline after dot (end of sentence) and space before opening parenthesis. | |||||
.It Va dev.pchtherm.%d.tahv | |||||
High alart value. This will not appear when sensor enable bit is locked down and the value is zero(which will show -50.0C). | |||||
danfeUnsubmitted Not Done Inline ActionsMissing newline after dot (end of sentence) and space before opening parenthesis. danfe: Missing newline after dot (end of sentence) and space before opening parenthesis. | |||||
.It Va dev.pchtherm.%d.pmtemp | |||||
Sensor Power management temperature. Under this temperature, sensor will idle during pmtime. | |||||
danfeUnsubmitted Not Done Inline ActionsSentence break => new line; should it be spelled as .Va pmtime (as this is a reference to adjacent variable)? danfe: Sentence break => new line; should it be spelled as `.Va pmtime` (as this is a reference to… | |||||
.It Va dev.pchtherm.%d.pmtime | |||||
Sensor idle duration when low temperature. | |||||
.It Va dev.pchtherm.%d.pch_hot_level | |||||
When temperature is higher than this value, PCHHOT# pin will assert. This value is not appear when this feature is disabled and locked down. | |||||
.El | |||||
.Pp | |||||
Please check the PCH datasheets for more details. | |||||
.Pp | |||||
.Sh CAVEAT | |||||
All values are read only and not support event interrupt for now. | |||||
danfeUnsubmitted Not Done Inline ActionsPerhaps should be: read-only, do not support... danfe: Perhaps should be: //read-only//, //do not// support... | |||||
.Sh SEE ALSO | |||||
.Xr sysctl 8 | |||||
.Sh HISTORY | |||||
The | |||||
.Nm | |||||
driver first appeared in | |||||
.Fx 13.0 . | |||||
.Sh AUTHORS | |||||
.An -nosplit | |||||
The | |||||
.Nm | |||||
driver and this manual page were written by | |||||
.An Takanori Waanabe Aq Mt takawata@FreeBSD.org . | |||||
danfeUnsubmitted Not Done Inline ActionsI think you've also spelled your name wrong. :-) danfe: I think you've also spelled your name wrong. :-) |
templature/s/temperature