From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261938AbTJXBw2 (ORCPT ); Thu, 23 Oct 2003 21:52:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261939AbTJXBw2 (ORCPT ); Thu, 23 Oct 2003 21:52:28 -0400 Received: from web14905.mail.yahoo.com ([216.136.225.57]:20499 "HELO web14905.mail.yahoo.com") by vger.kernel.org with SMTP id S261938AbTJXBw0 (ORCPT ); Thu, 23 Oct 2003 21:52:26 -0400 Message-ID: <20031024015224.54982.qmail@web14905.mail.yahoo.com> Date: Thu, 23 Oct 2003 18:52:24 -0700 (PDT) From: Jon Smirl Subject: Re: [Dri-devel] Re: [Linux-fbdev-devel] DRM and pci_driver conversion To: Jeff Garzik , Linus Torvalds Cc: Jon Smirl , Eric Anholt , kronos@kronoz.cjb.net, Kernel Mailing List , linux-fbdev-devel@lists.sourceforge.net, dri-devel In-Reply-To: <3F987E18.9080606@pobox.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Video drivers only enable the ROM long enough to get some values out it and then disable it. You don't want to leave ROMs enabled because there is some hardware that uses the same address decoder for ROM and RAM and you can't use them both at the same time. --- Jeff Garzik wrote: > Linus Torvalds wrote: > > [ Jeff: is that PCI ROM enable _really_ that complicated? Ouch. Or is > > there some helper function I missed? ] > > > The mechanics aren't complicated, but I seem to recall there being a > Real Good Reason why you want to leave it disabled 99% of the time. No, > I don't recall that reason :( But my fuzzy memory seems to think that > "enable, grab a slice o 'rom, disable" was viable. > > Jeff > > > ===== Jon Smirl jonsmirl@yahoo.com __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com