From ee62bcfb037d8c127f05248732e17556bca0e426 Mon Sep 17 00:00:00 2001 From: jruoho Date: Fri, 6 Aug 2010 16:42:31 +0000 Subject: [PATCH] Add hpet(4). --- distrib/sets/lists/man/mi | 5 ++- share/man/man4/man4.x86/Makefile | 4 +- share/man/man4/man4.x86/hpet.4 | 76 ++++++++++++++++++++++++++++++++ 3 files changed, 82 insertions(+), 3 deletions(-) create mode 100644 share/man/man4/man4.x86/hpet.4 diff --git a/distrib/sets/lists/man/mi b/distrib/sets/lists/man/mi index a37ee26239a1..9352a85127bd 100644 --- a/distrib/sets/lists/man/mi +++ b/distrib/sets/lists/man/mi @@ -1,4 +1,4 @@ -# $NetBSD: mi,v 1.1231 2010/08/05 17:31:11 jruoho Exp $ +# $NetBSD: mi,v 1.1232 2010/08/06 16:42:31 jruoho Exp $ # # Note: don't delete entries from here - mark them as "obsolete" instead. # @@ -1734,6 +1734,7 @@ ./usr/share/man/cat4/x68k/vs.0 man-sys-catman .cat ./usr/share/man/cat4/x86/amdpcib.0 man-sys-catman .cat ./usr/share/man/cat4/x86/balloon.0 man-sys-catman .cat +./usr/share/man/cat4/x86/hpet.0 man-sys-catman .cat ./usr/share/man/cat4/xbox.0 man-sys-catman .cat ./usr/share/man/cat4/xge.0 man-sys-catman .cat ./usr/share/man/cat4/xi.0 man-sys-catman .cat @@ -4330,6 +4331,7 @@ ./usr/share/man/html4/x68k/vs.html man-sys-htmlman html ./usr/share/man/html4/x86/amdpcib.html man-sys-htmlman html ./usr/share/man/html4/x86/balloon.html man-sys-htmlman html +./usr/share/man/html4/x86/hpet.html man-sys-htmlman html ./usr/share/man/html4/xbox.html man-sys-htmlman html ./usr/share/man/html4/xge.html man-sys-htmlman html ./usr/share/man/html4/xi.html man-sys-htmlman html @@ -6864,6 +6866,7 @@ ./usr/share/man/man4/x68k/vs.4 man-sys-man .man ./usr/share/man/man4/x86/amdpcib.4 man-sys-man .man ./usr/share/man/man4/x86/balloon.4 man-sys-man .man +./usr/share/man/man4/x86/hpet.4 man-sys-man .man ./usr/share/man/man4/xbox.4 man-sys-man .man ./usr/share/man/man4/xge.4 man-sys-man .man ./usr/share/man/man4/xi.4 man-sys-man .man diff --git a/share/man/man4/man4.x86/Makefile b/share/man/man4/man4.x86/Makefile index 96a7b01dcad0..76af2db6544d 100644 --- a/share/man/man4/man4.x86/Makefile +++ b/share/man/man4/man4.x86/Makefile @@ -1,6 +1,6 @@ -# $NetBSD: Makefile,v 1.2 2010/08/05 04:58:27 jruoho Exp $ +# $NetBSD: Makefile,v 1.3 2010/08/06 16:42:31 jruoho Exp $ -MAN= amdpcib.4 balloon.4 +MAN= amdpcib.4 balloon.4 hpet.4 MANSUBDIR=/x86 diff --git a/share/man/man4/man4.x86/hpet.4 b/share/man/man4/man4.x86/hpet.4 new file mode 100644 index 000000000000..ea611c91a23f --- /dev/null +++ b/share/man/man4/man4.x86/hpet.4 @@ -0,0 +1,76 @@ +.\" $NetBSD: hpet.4,v 1.1 2010/08/06 16:42:31 jruoho Exp $ +.\" +.\" Copyright (c) 2010 Jukka Ruohonen +.\" 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 August 6, 2010 +.Dt HPET 4 x86 +.Os +.Sh NAME +.Nm hpet +.Nd High Precision Event Timer +.Sh SYNOPSIS +.Cd "hpet* at acpi?" +.Cd "hpet* at amdpcib?" +.Cd "hpet* at ichlpcib?" +.Sh DESCRIPTION +The +.Nm +driver supports High Precision Event Timers +.Pq Tn HPETs . +The +.Tn HPET +architecture defines one main 64-bit counter and several +additional timers with variable width. +The minimum clock frequency of the main timecounter is 10 MHz, +but much higher rates are common. +The additional 32 or 64 -bit parts are typically accessible via +.Tn MMIO +that is set by the system +.Tn BIOS +through +.Tn ACPI . +.Pp +As a +.Tn HPET +can provide higher interrupt rates than a +.Tn RTC +or +.Xr attimer 4 , +multimedia is one typical application context. +The interrupt logic is configurable through +.Tn I/O +.Tn APIC , +but a legacy mode is provided for older systems. +.Sh SEE ALSO +.Xr acpi 4 , +.Xr attimer 4 , +.Xr timecounter 9 +.Rs +.%A Intel Corporation +.%T IA-PC HPET (High Precision Event Timers) Specification +.%N Revision 1.0a +.%D October, 2004 +.%U http://www.intel.com/hardwaredesign/hpetspec_1.pdf +.Re