Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754803Ab0AISSM (ORCPT ); Sat, 9 Jan 2010 13:18:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754771Ab0AISSK (ORCPT ); Sat, 9 Jan 2010 13:18:10 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:55245 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754741Ab0AISSJ (ORCPT ); Sat, 9 Jan 2010 13:18:09 -0500 Date: Sat, 9 Jan 2010 10:17:19 -0800 (PST) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Jerome Glisse cc: Jesse Barnes , Dave Airlie , "Rafael J. Wysocki" , LKML , pm list , dri-devel@lists.sourceforge.net Subject: Re: [PATCH] DRM / i915: Fix resume regression on MSI Wind U100 w/o KMS In-Reply-To: <20100109120141.GA4319@localhost.localdomain> Message-ID: References: <201001090045.33784.rjw@sisk.pl> <20100108185041.7aae6c01@jbarnes-piketon> <20100109120141.GA4319@localhost.localdomain> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1730 Lines: 39 On Sat, 9 Jan 2010, Jerome Glisse wrote: > On Fri, Jan 08, 2010 at 06:50:41PM -0800, Jesse Barnes wrote: > > > > Linus, can we ever drop those old paths? Maybe after the new bits have > > been around for awhile? Users of really old userspace stacks would > > lose 3D support, but they'd still have 2D, so it wouldn't be a complete > > break. The non-KMS paths sometimes break like this anyway without us > > noticing (especially some of the weirder 3D paths)... > > > > Just thinking out loud, we could really kill a lot of really bad code... > > I among those who would love such things to happen :) I don't want to drop it _yet_, but "ever"? Sure. When people are sure that KMS actually handles all the cases that old X does (maybe that's true now), and we've had more than just a couple of kernel releases of _stable_ Intel KMS, I suspect we can start thinking about "ok, nobody seriously uses 3D on Intel integrated graphics _and_ updates the kernel". The fact that they'd still have a working X setup would make it generally much more palatable, I think. But we definitely need more than just a couple of kernel releases. So we're talking timescales of "more than a year of stable code". Whether that is "six months from now" or "two years from now", I can't judge. And people can try to convince me to be more or less aggressive about it, so take the above as a more of a personal opinion that is open to change than anything definite and final. Linus -- 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/