68 lines
2.8 KiB
Groff
68 lines
2.8 KiB
Groff
.\" Copyright (c) 2001 Tamotsu HATTORI <athlete@kta.att.ne.jp>
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.\" Copyright (c) 2001 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.Dd June 30, 2001
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.Dt LONGRUN 4 i386
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.Os
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.Sh NAME
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.Nm longrun
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.Nd Transmeta(TM) Crusoe(TM) LongRun(TM) support
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.Sh SYNOPSIS
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LongRun support is a collection of power saving modes for the
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Transmeta Crusoe chips, similar in scope to Intel's SpeedStep.
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The following
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.Xr sysctl 8
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MIBs control the different CPU modes:
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.Bl -column ".Va hw.crusoe.percentage" ".Vt integer" "Changeable"
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.It Sy "Name Type Changeable Description"
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.It Va hw.crusoe.longrun Ta Vt integer Ta yes Ta "LongRun mode:"
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.It Ta Ta Ta "0: minimum frequency mode"
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.It Ta Ta Ta "1: power-saving mode"
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.It Ta Ta Ta "2: performance mode"
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.It Ta Ta Ta "3: maximum frequency mode"
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.It Va hw.crusoe.frequency Ta Vt integer Ta no Ta "Current frequency (MHz)."
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.It Va hw.crusoe.voltage Ta Vt integer Ta no Ta "Current voltage (mV)."
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.It Va hw.crusoe.percentage Ta Vt integer Ta no Ta "Processing performance (%)."
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.El
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.Sh EXAMPLES
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Print the current status:
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.Pp
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.Dl "% sysctl hw.crusoe"
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.Pp
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To set LongRun mode to performance oriented variable frequency mode
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(less power savings):
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.Pp
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.Dl "# sysctl hw.crusoe.longrun=2"
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.Sh HISTORY
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The Transmeta(TM) Crusoe(TM) LongRun(TM) support first appeared in
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.Fx 4.4 .
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.Sh AUTHORS
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.An -nosplit
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LongRun support and this manual page were written by
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.An Tamotsu HATTORI Aq Mt athlete@kta.att.ne.jp
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and
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.An Mitsuru IWASAKI Aq Mt iwasaki@FreeBSD.org .
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