From 15f16d016ed025f0236fdc92a1efb7b221b2833e Mon Sep 17 00:00:00 2001 From: sbruno Date: Thu, 18 Oct 2012 22:22:01 +0000 Subject: [PATCH] est(4) man page update to document the exposed sysctl r/o variables available to the user. Should be applicable to all branches and versions where est(4) exists. thanks to gjb for reviewing and suggesting nits Reviewed by: gjb@ MFC after: 2 weeks --- share/man/man4/est.4 | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/share/man/man4/est.4 b/share/man/man4/est.4 index f1b5832af734..98c05048145c 100644 --- a/share/man/man4/est.4 +++ b/share/man/man4/est.4 @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 12, 2012 +.Dd October 18 , 2012 .Dt EST 4 .Os .Sh NAME @@ -63,13 +63,36 @@ behavior. .Bl -tag -width indent .It hw.est.msr_info Attempt to infer information from direct probing of the msr. -Should only be used in diagnostic cases +Should only be used in diagnostic cases. .Pq default 0 .It hw.est.strict Validate frequency requested is accepted by the cpu when set. It appears that this will only work on single core cpus. .Pq default 0 .El +.Sh SYSCTL VARIABLES +The following +.Xr sysctl 8 +values are available +.Bl -tag -width indent +.It Va dev.est.%d.\%desc +Description of support, almost always Enhanced SpeedStep Frequency Control. +.It dev.est.0.%desc: Enhanced SpeedStep Frequency Control +.It Va dev.est.%d.\%driver +Driver in use, always est. +.It dev.est.0.%driver: est +.It Va dev.est.%d.\%parent +.It dev.est.0.%parent: cpu0 +The cpu that is exposing these frequencies. +For example +.Va cpu0 . +.It Va dev.est.%d.freq_settings . +The valid frequencies that are allowed by this CPU and their step values. +.It dev.est.0.freq_settings: 2201/45000 2200/45000 2000/39581 1900/37387 +1800/34806 1700/32703 1600/30227 1500/28212 1400/25828 1300/23900 1200/21613 +1100/19775 1000/17582 900/15437 800/13723 +.Pp +.El .Sh DIAGNOSTICS .Bl -diag .It "est%d: on cpu%d"