From owner-p4-projects@FreeBSD.ORG Fri Aug 22 14:49:47 2003 Return-Path: Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id 09F0416A4C3; Fri, 22 Aug 2003 14:49:47 -0700 (PDT) Delivered-To: perforce@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 96B9916A4BF; Fri, 22 Aug 2003 14:49:46 -0700 (PDT) Received: from harmony.village.org (rover.bsdimp.com [204.144.255.66]) by mx1.FreeBSD.org (Postfix) with ESMTP id C033243F3F; Fri, 22 Aug 2003 14:49:45 -0700 (PDT) (envelope-from imp@bsdimp.com) Received: from localhost (warner@rover2.village.org [10.0.0.1]) by harmony.village.org (8.12.9/8.12.3) with ESMTP id h7MLniFL004785; Fri, 22 Aug 2003 15:49:44 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Fri, 22 Aug 2003 15:49:41 -0600 (MDT) Message-Id: <20030822.154941.31253895.imp@bsdimp.com> To: marcel@xcllnt.net From: "M. Warner Losh" In-Reply-To: <20030822173606.GA849@dhcp42.pn.xcllnt.net> References: <20030821173225.GA780@dhcp42.pn.xcllnt.net> <20030822173606.GA849@dhcp42.pn.xcllnt.net> X-Mailer: Mew version 2.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: perforce@freebsd.org cc: jhb@freebsd.org Subject: Re: PERFORCE change 36551 for review X-BeenThere: p4-projects@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: p4 projects tree changes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Aug 2003 21:49:48 -0000 In message: <20030822173606.GA849@dhcp42.pn.xcllnt.net> Marcel Moolenaar writes: : > > So, please. Do not blur the distinction by having it all mapped as : > > ISA devices. I really don't want to have to shoot you :-) : > : > Well, the other alternative is to add an ACPI attachment for every : > ISA device. I'm sure you can appreciate my lack of zeal for this : > option. :( : : Moving forward I would think that you replace ISA bus attachments : with ACPI bus attachments until such time you don't have any ISA : drivers anymore. That is, you probably need drivers for ISA devices : that exist on alpha, so you'll end up with a handful of drivers : that have both ACPI and ISA. Hmmm, I don't know if this holds for : pc98 or not? Assumption: bus attachement are cheap. There will be a number of drivers that violate this, and may need to be rearranged, but forcing a device onto the ISA bus because we don't have a ACPI attachment for it is lame. The pc98 folks have expressed a strong desire that CBUS front ends be separate from ISA front ends. There's a number of technical reasons for this, in addition to the asthetic argument. Basically, they've shoe-horned cbus into ISA bus, and it is a poor fit. Let's learn from that lesson. Warner