Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759473AbXEVAvr (ORCPT ); Mon, 21 May 2007 20:51:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756034AbXEVAvk (ORCPT ); Mon, 21 May 2007 20:51:40 -0400 Received: from home.keithp.com ([63.227.221.253]:1074 "EHLO keithp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755918AbXEVAvj (ORCPT ); Mon, 21 May 2007 20:51:39 -0400 Subject: Re: [RFC] enhancing the kernel's graphics subsystem From: Keith Packard To: Benjamin Herrenschmidt Cc: keithp@keithp.com, Jesse Barnes , James Simmons , dri-devel@lists.sourceforge.net, Dave Airlie , linux-kernel@vger.kernel.org, "Antonino A. Daplas" In-Reply-To: <1179792587.32247.769.camel@localhost.localdomain> References: <200705171423.46748.jesse.barnes@intel.com> <1179792587.32247.769.camel@localhost.localdomain> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-lyl7qq3a5uuAVnHkYeDI" Date: Mon, 21 May 2007 17:51:32 -0700 Message-Id: <1179795093.5826.391.camel@neko.keithp.com> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1631 Lines: 44 --=-lyl7qq3a5uuAVnHkYeDI Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Tue, 2007-05-22 at 10:09 +1000, Benjamin Herrenschmidt wrote: > I do stongly beleive that the decision of what mode to choose should not > be made in the kernel. That's the plan; the kernel just provides mechanism. The architecture used in the X server splits precisely at this point with the mechanism in the driver and the configuration and policy up in the X server proper. Quite a bit of that code could be broken out into a shared library for fbdev-based apps and the X server to share, but that's down the road a bit after the kernel APIs look a lot more solid. With the goal of getting to a single-mode-set boot to avoid screen flashing before login, the key here is to make any early user-mode graphics apps share the same kernel graphics infrastructure as the X server to identify the common cases where the startup and X modes are the same and avoid resetting the configuration. --=20 keith.packard@intel.com --=-lyl7qq3a5uuAVnHkYeDI Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBGUj6UQp8BWwlsTdMRAlWpAKCuBZxQhJa2HycNYGhFHYp1oZoWKACffdxN NiAHBS3wI5+nbrv+vAKmgAU= =PCw9 -----END PGP SIGNATURE----- --=-lyl7qq3a5uuAVnHkYeDI-- - 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/