Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030281AbWEDWFn (ORCPT ); Thu, 4 May 2006 18:05:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030282AbWEDWFn (ORCPT ); Thu, 4 May 2006 18:05:43 -0400 Received: from nz-out-0102.google.com ([64.233.162.193]:34468 "EHLO nz-out-0102.google.com") by vger.kernel.org with ESMTP id S1030281AbWEDWFm convert rfc822-to-8bit (ORCPT ); Thu, 4 May 2006 18:05:42 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=F46zYsbKu4oloEjKkCHEkb2GSMUj6sU0LT7g9KuSAAt2NsMVeesVKthCrUhK5VueNCiCluctG1UjV1wAackgT7mf4uwlE/1pi+Y6QOYcQia8NO6SjFMujmJdJEWXDYb2pieVnqqJDLO985gJG2aFfCVfcbQUKu2Ot/ZrrEOLc7M= Message-ID: <9e4733910605041505x69a6637fn1d32151fb63ef5a3@mail.gmail.com> Date: Thu, 4 May 2006 18:05:41 -0400 From: "Jon Smirl" To: "Peter Jones" Subject: Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access Cc: "Matthew Garrett" , "Bjorn Helgaas" , linux-pci@atrey.karlin.mff.cuni.cz, "Dave Airlie" , "Andrew Morton" , greg@kroah.com, linux-kernel@vger.kernel.org, "Arjan van de Ven" In-Reply-To: <1146779821.27727.36.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <1146300385.3125.3.camel@laptopd505.fenrus.org> <445A51F1.9040500@linux.intel.com> <200605041326.36518.bjorn.helgaas@hp.com> <9e4733910605041340r65d47209h2da079d9cf8fceae@mail.gmail.com> <1146776736.27727.11.camel@localhost.localdomain> <9e4733910605041418n2105e50bs8803cd6ac8407c48@mail.gmail.com> <1146778720.27727.35.camel@localhost.localdomain> <9e4733910605041448j431266d5x8669f79bd1b36e18@mail.gmail.com> <1146779821.27727.36.camel@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1102 Lines: 35 On 5/4/06, Peter Jones wrote: > On Thu, 2006-05-04 at 17:48 -0400, Jon Smirl wrote: > > > Let me be clear here. A lot of laptop video hardware does not have a > > video ROM. > > Why do you assume we're only talking about laptops? Because when you make statements like... > Except to enable the BAR and read it from the assigned address... That statement doesn't hold true for laptops. It indicates that you may not be aware of all of the issues around VGA bus routing and video ROMs. For example there are a lot of special issues with VGA support in large large machines like the SGI Altix that have multiple independent PCI domains. Owners of all of these other architectures (PPC especially) having been beating me up for two years making me aware of all of their weird cases. > > -- > Peter > > -- Jon Smirl jonsmirl@gmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/