Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263242AbTIVRLl (ORCPT ); Mon, 22 Sep 2003 13:11:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263243AbTIVRLl (ORCPT ); Mon, 22 Sep 2003 13:11:41 -0400 Received: from node-d-1ea6.a2000.nl ([62.195.30.166]:25842 "EHLO laptop.fenrus.com") by vger.kernel.org with ESMTP id S263242AbTIVRLk (ORCPT ); Mon, 22 Sep 2003 13:11:40 -0400 Subject: Re: Can we kill f inb_p, outb_p and other random I/O on port 0x80, in 2.6? From: Arjan van de Ven Reply-To: arjanv@redhat.com To: Alan Cox Cc: Jamie Lokier , "Eric W. Biederman" , Linux Kernel Mailing List In-Reply-To: <1064248391.8895.6.camel@dhcp23.swansea.linux.org.uk> References: <1064229778.8584.2.camel@dhcp23.swansea.linux.org.uk> <20030922162602.GB27209@mail.jlokier.co.uk> <1064248391.8895.6.camel@dhcp23.swansea.linux.org.uk> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-NZztW7ncGQAYBRFExUg7" Organization: Red Hat, Inc. Message-Id: <1064250691.6235.2.camel@laptop.fenrus.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.4 (1.4.4-6) Date: Mon, 22 Sep 2003 19:11:31 +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1276 Lines: 40 --=-NZztW7ncGQAYBRFExUg7 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Mon, 2003-09-22 at 18:33, Alan Cox wrote: \ > > I've also seen much DOS code that didn't have extra delays for > > keyboard I/Os. What sort of breakage did you observe with the > > keyboard? >=20 > DEC laptops hang is the well known example of that one. >=20 > I'm *for* making this change to udelay, it just has to start up with a > suitably pessimal udelay assumption until calibrated. or we make udelay() do the port 80 access in the uncalibrated case.... The first person to complain about the extra branch miss in udelay for this will get laughed at by me ;) --=-NZztW7ncGQAYBRFExUg7 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQA/by1DxULwo51rQBIRAg46AJ9v/ZPlZb6JF2YsDA19S7QaPLIbjACghVYT OYXI/eAqwzL2oKCIagBlc6s= =8GdQ -----END PGP SIGNATURE----- --=-NZztW7ncGQAYBRFExUg7-- - 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/