From owner-freebsd-current Mon Jul 12 20:27:29 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 3224014C2F for ; Mon, 12 Jul 1999 20:27:26 -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 XAA59570; Mon, 12 Jul 1999 23:24:53 -0400 (EDT) X-Authentication-Warning: janus.syracuse.net: green owned process doing -bs Date: Mon, 12 Jul 1999 23:24:53 -0400 (EDT) From: "Brian F. Feldman" X-Sender: green@janus.syracuse.net To: Mike Smith Cc: Stephen Hocking-Senior Programmer PGS Tensor Perth , current@FreeBSD.org Subject: Re: MTRR stuff In-Reply-To: <199907122356.QAA02518@dingo.cdrom.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 Mon, 12 Jul 1999, Mike Smith wrote: > > > > > What exactly are the ranges? You haven't given me enough info yet. I wrote the > > > K6-* MTRR driver, so I'd like to help. > > > > > OK, the Linux 3dfx driver attempts to set up a write combining range starting > > at the card's base address and 0x400000 bytes long. After doing this it then > > sets up a range marked as uncacheable starting at the card's base address of > > length 0x1000. > > The current i686 MTRR driver doesn't allow overlapping ranges at all; > this is a defect in its implementation that will be rectified when I > get to work on it next (hopefully in the next week or so). The current K6 MTRR driver does, but I need more information on exactly what's wrong. If it's returning EINVAL, what EXACTLY did he pass it? Stephen, you're not giving enough information. > > -- > \\ The mind's the standard \\ Mike Smith > \\ of the man. \\ msmith@freebsd.org > \\ -- Joseph Merrick \\ msmith@cdrom.com > > > > > 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