From owner-freebsd-current Fri Jul 9 2:32:43 1999 Delivered-To: freebsd-current@freebsd.org Received: from janus.syracuse.net (janus.syracuse.net [205.232.47.15]) by hub.freebsd.org (Postfix) with ESMTP id C862014C45 for ; Fri, 9 Jul 1999 02:32:41 -0700 (PDT) (envelope-from green@FreeBSD.org) Received: from localhost (green@localhost) by janus.syracuse.net (8.9.2/8.8.7) with ESMTP id FAA68019; Fri, 9 Jul 1999 05:32:40 -0400 (EDT) X-Authentication-Warning: janus.syracuse.net: green owned process doing -bs Date: Fri, 9 Jul 1999 05:32:40 -0400 (EDT) From: "Brian F. Feldman" X-Sender: green@janus.syracuse.net To: Stephen Hocking-Senior Programmer PGS Tensor Perth Cc: current@FreeBSD.org Subject: Re: MTRR stuff In-Reply-To: <199907090232.KAA04002@ariadne.tensor.pgs.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, 9 Jul 1999, Stephen Hocking-Senior Programmer PGS Tensor Perth wrote: > For some video cards (to wit, the voodoo stuff), the MTRRs should be set up as > follows > > write-combining > +----------------------------------------------------------+ > +-------+ > uncacheable > > i.e. the two regions have the same starting area, but the small chunk for the > registers should be uncacheable. When I try to do this using memconf on my > K6-2, it spits the dummy. Is there a work around for this? Spits the dummy? And do you mean memcontrol? I have no idea what you mean by that. However, the natural thing to do would be this: +-------+ write-combine uncacheable +----------------------------------------------+ uncacheable > > > Stephen > -- > The views expressed above are not those of PGS Tensor. > > "We've heard that a million monkeys at a million keyboards could produce > the Complete Works of Shakespeare; now, thanks to the Internet, we know > this is not true." Robert Wilensky, University of California > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > Brian Fundakowski Feldman _ __ ___ ____ ___ ___ ___ green@FreeBSD.org _ __ ___ | _ ) __| \ FreeBSD: The Power to Serve! _ __ | _ \._ \ |) | http://www.FreeBSD.org/ _ |___/___/___/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message