From owner-freebsd-current@FreeBSD.ORG Thu May 4 00:04:52 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4C64816A400 for ; Thu, 4 May 2006 00:04:52 +0000 (UTC) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (gate.funkthat.com [69.17.45.168]) by mx1.FreeBSD.org (Postfix) with ESMTP id BEC8543D45 for ; Thu, 4 May 2006 00:04:51 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (j87jwwcrtmcchmal@localhost.funkthat.com [127.0.0.1]) by hydrogen.funkthat.com (8.13.4/8.13.3) with ESMTP id k4404l6m048015; Wed, 3 May 2006 17:04:47 -0700 (PDT) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.13.4/8.13.3/Submit) id k4404jJ2048014; Wed, 3 May 2006 17:04:45 -0700 (PDT) (envelope-from jmg) Date: Wed, 3 May 2006 17:04:45 -0700 From: John-Mark Gurney To: "M. Warner Losh" Message-ID: <20060504000445.GU728@funkthat.com> Mail-Followup-To: "M. Warner Losh" , takawata@jp.freebsd.org, freebsd-current@freebsd.org References: <20060501.222743.32503989.imp@bsdimp.com> <200605032151.k43Lpjg2009960@ns.init-main.com> <20060503.155937.118274131.imp@bsdimp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060503.155937.118274131.imp@bsdimp.com> User-Agent: Mutt/1.4.2.1i X-Operating-System: FreeBSD 5.4-RELEASE-p6 i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html Cc: freebsd-current@freebsd.org Subject: Re: lpt0 disappear (ppc related) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: John-Mark Gurney List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 May 2006 00:04:52 -0000 Warner Losh wrote this message on Wed, May 03, 2006 at 15:59 -0600: > In message: <200605032151.k43Lpjg2009960@ns.init-main.com> > takawata@jp.freebsd.org writes: > : In message <20060501.222743.32503989.imp@bsdimp.com>, "M. Warner Losh" ?$B$5$s$$$o > : ?$B$/: > : >In message: <200605020815.31012.doconnor@gsoft.com.au> > : > "Daniel O'Connor" writes: > : >: On Tuesday 02 May 2006 01:23, M. Warner Losh wrote: > : >: > : However you wouldn't expect that using it as a module would result in > : >: > : reduced functionality. (The same as how you wouldn't expect compiling > : >: > : something into your kernel would result in reduced functionality) > : >: > > : >: > At the same time, you'd expect it to behave like every other 'bus' in > : >: > the tree. We omit the attachments for drivers to that bus when the > : >: > kernel is built w/o that bus. This is why if you have, say, ep in the > : >: > kernel, but pccard loaded as a module, the 3c589 you just inserted > : >: > into the pccard slot won't work. > : >: > > : >: > It is a minor imperfection in the config system that no one has taken > : >: > on as a Problem To Solve. Solving it turns out to be somewhat tricky. > : >: > : >: Hmm, but I load acpi as a module and get acpi attachments.. (for sio and ppc > : >) > : >: > : >: it's black magic to me anyway :) > : >: > : >: I didn't mean to belittle Marcel's work, I was just suprised that it would > : >: cause a functionality loss like that. > : > > : >I think it just points out a weakness in the underlying system... > : > : Is it time to hide isa_dma interface under isa_if ? > : All acpi capable archictectures links isa_if.c, I think. > > Yes. I think it would be worthwhile to have all the ISA symbols > hidden, like we do for PC Card. This would be a step in that > direction... Maybe the last step? Yeh, it'd be good.. I don't plan on adding support for ISA to sun4v till I don't have to define anoying symbols like isa_init just to get it running.. :( -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."