1 files changed, 89 insertions, 0 deletions
diff --git a/static/netbsd/man4/man4.x86/est.4 b/static/netbsd/man4/man4.x86/est.4
new file mode 100644
index 00000000..5f3fe053
--- /dev/null
+++ b/static/netbsd/man4/man4.x86/est.4
@@ -0,0 +1,89 @@
+.\" $NetBSD: est.4,v 1.7 2020/11/14 20:04:46 wiz Exp $
+.\"
+.\" Copyright (c) 2011 Jukka Ruohonen <jruohonen@iki.fi>
+.\" All rights reserved.
+.\"
+.\" 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. Neither the name of the author nor the names of any
+.\"    contributors may be used to endorse or promote products derived
+.\"    from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
+.\" ``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 FOUNDATION OR CONTRIBUTORS
+.\" 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 THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd September 7, 2020
+.Dt EST 4 x86
+.Os
+.Sh NAME
+.Nm est
+.Nd Enhanced SpeedStep
+.Sh SYNOPSIS
+.Cd "est0 at cpu0"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for Enhanced SpeedStep introduced in
+Intel's first and second generation of Pentium M processors.
+The following
+.Xr sysctl 8
+variables are available with
+.Nm :
+.Bl -tag -width "machdep.cpu.frequency.available" -offset indent
+.It Ic machdep.cpu.frequency.target
+The target frequency of the
+.Tn CPUs .
+.It Ic machdep.cpu.frequency.current
+The current frequency.
+.It Ic machdep.cpu.frequency.available
+The frequencies recognized by
+.Nm .
+.El
+.Pp
+Note, however, that these variables are
+not guaranteed to exist in the future versions of
+.Nx .
+.Sh SEE ALSO
+.Xr acpicpu 4 ,
+.Xr x86/odcm 4 ,
+.Xr x86/powernow 4
+.Rs
+.%A Intel Corporation
+.%T Intel Pentium M Processor.
+.%T Datasheet
+.%D March, 2004
+.%U http://download.intel.com/support/processors/mobile/pm/sb/25261203.pdf
+.Re
+.Rs
+.%A Intel Corporation
+.%T Enhanced Intel SpeedStep Technology for the Intel Pentium M Processor.
+.%T White Paper
+.%D March, 2004
+.%U http://download.intel.com/design/network/papers/30117401.pdf
+.Re
+.Sh CAVEATS
+The
+.Nm
+driver is considered a legacy interface to be used only with old systems.
+It is known to be problematic with new
+.Tn CPUs .
+Furthermore, in the unlikely case where both
+.Nm
+and
+.Xr x86/ichlpcib 4
+or
+.Xr piixpcib 4
+provide support for SpeedStep,
+the PCI-based interfaces should not be accessed due possible race conditions.