Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267457AbUIMQec (ORCPT ); Mon, 13 Sep 2004 12:34:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267841AbUIMQdH (ORCPT ); Mon, 13 Sep 2004 12:33:07 -0400 Received: from mail1.ati.com ([209.50.91.165]:50146 "EHLO mail1.ati.com") by vger.kernel.org with ESMTP id S268317AbUIMQap convert rfc822-to-8bit (ORCPT ); Mon, 13 Sep 2004 12:30:45 -0400 Subject: Re: radeon-pre-2 X-Sybari-Trust: 2fba19ec e1e46965 669a16f6 00000108 From: Michel =?ISO-8859-1?Q?D=E4nzer?= To: Alex Deucher Cc: Vladimir Dergachev , Dave Airlie , Alan Cox , Jon Smirl , Felix =?ISO-8859-1?Q?K=FChling?= , DRI Devel , lkml , Linus Torvalds In-Reply-To: References: <1094835846.17932.11.camel@localhost.localdomain> <9e47339104091011402e8341d0@mail.gmail.com> <1094853588.18235.12.camel@localhost.localdomain> <1094912726.21157.52.camel@localhost.localdomain> <1095035276.22112.31.camel@admin.tel.thor.asgaard.local> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Date: Mon, 13 Sep 2004 12:29:46 -0400 Message-Id: <1095092986.4610.78.camel@admin.tel.thor.asgaard.local> Mime-Version: 1.0 X-Mailer: Evolution 1.5.94.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1651 Lines: 39 On Mon, 2004-09-13 at 02:05 -0400, Alex Deucher wrote: > On Sun, 12 Sep 2004 20:45:18 -0400 (EDT), Vladimir Dergachev > wrote: > > > > > > On Sun, 12 Sep 2004, Michel [ISO-8859-1] D�nzer wrote: > > > > > On Sun, 2004-09-12 at 23:42 +0100, Dave Airlie wrote: > > >> > > >> I think yourself and Linus's ideas for a locking scheme look good, I also > > >> know they won't please Jon too much as he can see where the potential > > >> ineffecienes with saving/restore card state on driver swap are, especailly > > >> on running fbcon and X on a dual-head card with different users. > > > > > > Frankly, I don't understand the fuss about that. When you run a 3D > > > client on X today, 3D client and X server share the accelerator with > > > this scheme, and as imperfect as it is, it seems to do a pretty good job > > > in my experience. > > > > Not that good - try dragging something while a DVD video is playing. > > The overlay could be converted to use the CP engine as well. right now > it has to switch to MMIO for overlay. The question is whether that matters at all, i.e. whether the registers used for the overlay are FIFO'd. Either way, I don't see how this is related to the way DRM context switches are handled. -- Earthling Michel Dänzer | Debian (powerpc), X and DRI developer Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer - 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/