From owner-cvs-all@FreeBSD.ORG  Mon Dec 12 22:27:08 2005
Return-Path: <owner-cvs-all@FreeBSD.ORG>
X-Original-To: cvs-all@FreeBSD.org
Delivered-To: cvs-all@FreeBSD.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 78CD016A41F;
	Mon, 12 Dec 2005 22:27:08 +0000 (GMT)
	(envelope-from peter@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 2E40943D5D;
	Mon, 12 Dec 2005 22:27:08 +0000 (GMT)
	(envelope-from peter@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id jBCMR8m1087112;
	Mon, 12 Dec 2005 22:27:08 GMT
	(envelope-from peter@repoman.freebsd.org)
Received: (from peter@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id jBCMR8SJ087111;
	Mon, 12 Dec 2005 22:27:08 GMT (envelope-from peter)
Message-Id: <200512122227.jBCMR8SJ087111@repoman.freebsd.org>
From: Peter Wemm <peter@FreeBSD.org>
Date: Mon, 12 Dec 2005 22:27:08 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Cc: 
Subject: cvs commit: src/sys/amd64/isa clock.c
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: CVS commit messages for the entire tree <cvs-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-all>
List-Post: <mailto:cvs-all@freebsd.org>
List-Help: <mailto:cvs-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 12 Dec 2005 22:27:08 -0000

peter       2005-12-12 22:27:08 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/isa        clock.c 
  Log:
  For the amd64 platform, we can depend on the TSC being present.  This patch
  changes DELAY to use the TSC once it has been calibrated.  This does NOT
  use the TSC for long-term timekeeping.   It only uses it to bound the
  DELAY() spinloop.  This should not be affected by the Athlon64 X2 TSC
  quirks because the cpu is not halted while we use DELAY().
  
  Revision  Changes    Path
  1.223     +15 -0     src/sys/amd64/isa/clock.c