svn commit: r193810 - head/lib/libpmc

[Joseph Koshy]

Author: jkoshy
Date: Tue Jun  9 06:36:29 2009
New Revision: 193810
URL: http://svn.freebsd.org/changeset/base/193810

Log:
  Document the fact that some Core2 family CPUs lack fixed-function counters.

Modified:
  head/lib/libpmc/pmc.core2.3

Modified: head/lib/libpmc/pmc.core2.3
==============================================================================
--- head/lib/libpmc/pmc.core2.3	Tue Jun  9 06:34:48 2009	(r193809)
+++ head/lib/libpmc/pmc.core2.3	Tue Jun  9 06:36:29 2009	(r193810)
@@ -1,4 +1,4 @@
-.\" Copyright (c) 2008 Joseph Koshy.  All rights reserved.
+.\" Copyright (c) 2008,2009 Joseph Koshy.  All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
@@ -23,7 +23,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd November 12, 2008
+.Dd June 8, 2009
 .Os
 .Dt PMC.CORE2 3
 .Sh NAME
@@ -42,7 +42,7 @@ family CPUs
 CPUs contain PMCs conforming to version 2 of the
 .Tn Intel
 performance measurement architecture.
-These CPUs contains two classes of PMCs:
+These CPUs may contain upto two classes of PMCs:
 .Bl -tag -width "Li PMC_CLASS_IAP"
 .It Li PMC_CLASS_IAF
 Fixed-function counters that count only one hardware event per counter.
@@ -66,6 +66,7 @@ Intel Core2 PMCs are documented in
 .Ss CORE2 FIXED FUNCTION PMCS
 These PMCs and their supported events are documented in
 .Xr pmc.iaf 3 .
+Not all CPUs in this family implement fixed-function counters.
 .Ss CORE2 PROGRAMMABLE PMCS
 The programmable PMCs support the following capabilities:
 .Bl -column "PMC_CAP_INTERRUPT" "Support"