From owner-freebsd-current@FreeBSD.ORG Wed May 12 18:31:04 2004 Return-Path: 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 7298216A4CE for ; Wed, 12 May 2004 18:31:04 -0700 (PDT) Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6A7E143D45 for ; Wed, 12 May 2004 18:31:03 -0700 (PDT) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de (cicely5.cicely.de [IPv6:3ffe:400:8d0:301:200:92ff:fe9b:20e7]) (authenticated bits=0) i4D1UqDv017543 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Thu, 13 May 2004 03:30:56 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [IPv6:3ffe:400:8d0:301::12]) by cicely5.cicely.de (8.12.10/8.12.10) with ESMTP id i4D1U4Ui074382 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 13 May 2004 03:30:05 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.12.11/8.12.11) with ESMTP id i4D1U4vv014387; Thu, 13 May 2004 03:30:04 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.12.11/8.12.11/Submit) id i4D1U09U014383; Thu, 13 May 2004 03:30:00 +0200 (CEST) (envelope-from ticso) Date: Thu, 13 May 2004 03:30:00 +0200 From: Bernd Walter To: Bruce Evans Message-ID: <20040513012959.GS70900@cicely12.cicely.de> References: <40A26162.9030607@cronyx.ru> <20040513054339.E13728@gamplex.bde.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040513054339.E13728@gamplex.bde.org> X-Operating-System: FreeBSD cicely12.cicely.de 5.2-CURRENT alpha User-Agent: Mutt/1.5.6i X-Spam-Status: No, hits=-4.9 required=3.0 tests=BAYES_00 autolearn=ham version=2.61 X-Spam-Report: * -4.9 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] X-Spam-Checker-Version: SpamAssassin 2.61 (1.212.2.1-2003-12-09-exp) on cicely5.cicely.de cc: freebsd-current@freebsd.org cc: Roman Kurakin Subject: Re: Sio & Puc memory mapped X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: ticso@cicely.de List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 May 2004 01:31:04 -0000 On Thu, May 13, 2004 at 05:48:55AM +1000, Bruce Evans wrote: > On Wed, 12 May 2004, Roman Kurakin wrote: > > > Does any body workin on support for memory mapped serial adapters? > > As I understand puc (4) allows to add support for such card, but sio (4) > > cant > > serve them any way. > > If nobody doesn't, why so? If no one of developers bother, does anybody > > wants this support? > > There is little need for it, because it is normal for pci 16550 cards to > have i/o-mapped memory (possibly both memory-mapped and i/o mapped). alphas don't setup i/o space behind PCI-PCI bridges. Not that I've ever seen a bridged puc card and I'm not aware of any alpha with onboard PCI-PCI bridges. Having io space is optionaly acording to PCI specs anyway and cards as well as drivers (at least architecture idependent) shouldn't rely on that. -- B.Walter BWCT http://www.bwct.de bernd@bwct.de info@bwct.de