From owner-freebsd-arm@FreeBSD.ORG  Fri Dec 19 16:11:28 2008
Return-Path: <owner-freebsd-arm@FreeBSD.ORG>
Delivered-To: arm@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id F1E681065674;
	Fri, 19 Dec 2008 16:11:28 +0000 (UTC)
	(envelope-from tinguely@casselton.net)
Received: from casselton.net (casselton.net [63.165.140.2])
	by mx1.freebsd.org (Postfix) with ESMTP id B57A28FC2E;
	Fri, 19 Dec 2008 16:11:28 +0000 (UTC)
	(envelope-from tinguely@casselton.net)
Received: from casselton.net (localhost [127.0.0.1])
	by casselton.net (8.14.2/8.14.2) with ESMTP id mBJGBRuS044292;
	Fri, 19 Dec 2008 10:11:27 -0600 (CST)
	(envelope-from tinguely@casselton.net)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=casselton.net;
	s=ccnMail; t=1229703087; bh=9qbdqjuoxEdZHeTGe+3ABEz71k8pwh6T8g67Hj2
	8+WA=; h=Date:From:Message-Id:To:Subject:Cc:In-Reply-To; b=KySDFpGT
	k/H2HRDT4l3YIVPHIaKmUWJnWpl0mBWNg+UFon9tu2yctahjpLBMeCDeAO0keY1lc5s
	oX6OxDau2g0QmLx4wNuT5P5BKr73xYHR8DhuVlKLfyHztu0rhplGhxtUqIfiDhiBXaq
	bWPYNOWpcbPyJfHDFK2iJeDQ+U8mY=
Received: (from tinguely@localhost)
	by casselton.net (8.14.2/8.14.2/Submit) id mBJGBRna044291;
	Fri, 19 Dec 2008 10:11:27 -0600 (CST) (envelope-from tinguely)
Date: Fri, 19 Dec 2008 10:11:27 -0600 (CST)
From: Mark Tinguely <tinguely@casselton.net>
Message-Id: <200812191611.mBJGBRna044291@casselton.net>
To: gjb@semihalf.com, tinguely@casselton.net
In-Reply-To: <494BB647.2060807@semihalf.com>
Cc: arm@freebsd.org, embedded@freebsd.org
Subject: Re: Multiple virtual mappings considered harmful on ARM
X-BeenThere: freebsd-arm@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Porting FreeBSD to the StrongARM Processor <freebsd-arm.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
	<mailto:freebsd-arm-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arm>
List-Post: <mailto:freebsd-arm@freebsd.org>
List-Help: <mailto:freebsd-arm-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
	<mailto:freebsd-arm-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 19 Dec 2008 16:11:29 -0000


Looking at the pmap code real quick, I think the original authors
assumed quick kernel entries were not shared. Since they can be, we
should have to add pv_entrys and the cache vac/fix process on the
pmap_kenter_internal called routines too.

I am still thinking the ARM code should revolve to FreeBSD style
(recursive page tables, make SMP ready, etc).

--Mark.