From owner-freebsd-questions@FreeBSD.ORG  Mon Jan 10 04:25:07 2005
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 6C9BA16A4CE
	for <freebsd-questions@freebsd.org>;
	Mon, 10 Jan 2005 04:25:07 +0000 (GMT)
Received: from smtp.pspl.co.in (smtp.persistent.co.in [202.54.11.65])
	by mx1.FreeBSD.org (Postfix) with ESMTP id C0DC143D39
	for <freebsd-questions@freebsd.org>;
	Mon, 10 Jan 2005 04:25:05 +0000 (GMT)
	(envelope-from romil_shah@persistent.co.in)
Received: from ps2204 ([10.44.50.29])
	(authenticated bits=0)
	by smtp.pspl.co.in (8.12.9/8.12.9) with ESMTP id j0A4TARV030982
	for <freebsd-questions@freebsd.org>; Mon, 10 Jan 2005 09:59:10 +0530
From: "Romil Shah" <romil_shah@persistent.co.in>
To: "Freebsd" <freebsd-questions@freebsd.org>
Date: Mon, 10 Jan 2005 09:56:43 +0530
Message-ID: <PKEGLDHOACNEEHFFOBJKKEEGCAAA.romil_shah@persistent.co.in>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-Priority: 3 (Normal)
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0)
X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4927.1200
Importance: Normal
X-Brightmail-Tracker: AAAAAQAAAAQ=
X-White-List-Member: TRUE
Subject: What is the task of pmap_enter ?
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 10 Jan 2005 04:25:07 -0000


  Hi,
   I am working on 2200S RAID controller and using aac driver from RELEGN4 ,
aac_disk.c in the driver uses pmap_enter for coping the virtual pages to
some physical location. In FreeBSD 4.10 pmap_kenter_temporary is used which
return the address which is passed to the controller for dumping on kernel
panic where as this is not happening with pmap_enter , can any one tell me
the difference between pmap_enter and pmap_kenter_temporary  (both  this
file are present in i386/pmap.c.

Any suggestions will be of great help.

Thanks,


Romil Shah