Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756670Ab2BWSsa (ORCPT ); Thu, 23 Feb 2012 13:48:30 -0500 Received: from oproxy8-pub.bluehost.com ([69.89.22.20]:36072 "HELO oproxy8-pub.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756012Ab2BWSs2 (ORCPT ); Thu, 23 Feb 2012 13:48:28 -0500 Date: Thu, 23 Feb 2012 10:48:23 -0800 From: Jesse Barnes To: "Hao, Xudong" Cc: "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "Kay, Allen M" , "Zhang, Xiantao" Subject: Re: [PATCH] Quirk for IVB graphics FLR errata Message-ID: <20120223104823.7bac1916@jbarnes-desktop> In-Reply-To: <403610A45A2B5242BD291EDAE8B37D300FCD089A@SHSMSX102.ccr.corp.intel.com> References: <403610A45A2B5242BD291EDAE8B37D300FCD089A@SHSMSX102.ccr.corp.intel.com> X-Mailer: Claws Mail 3.7.9 (GTK+ 2.24.6; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/P4Zy5anbcafpsmzP/Y_eDUO"; protocol="application/pgp-signature" X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 67.161.37.189 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1935 Lines: 49 --Sig_/P4Zy5anbcafpsmzP/Y_eDUO Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Mon, 20 Feb 2012 02:27:25 +0000 "Hao, Xudong" wrote: > For IvyBridge Mobile platform, a system hang may occur if a FLR(Function = Level Reset) is asserted to internal graphics. >=20 > This quirk patch is workaround for the IVB FLR errata issue. >=20 Can you name the magic constants and offsets and document what the FLR quirk is actually trying to do? IIRC it had something to do with waiting for the PCH acknowledge for the display portion of the reset... Thanks, --=20 Jesse Barnes, Intel Open Source Technology Center --Sig_/P4Zy5anbcafpsmzP/Y_eDUO Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJPRon3AAoJEIEoDkX4Qk9hzTAQANAijXxvHI5LTAkZbRjA2kYv TL22RD4yujLxWchmUmuB8E+w8s11/jiPFDp2F5m4WvMU++jtyxXHD8XghXtqVfp6 UuUuAllVfzUlB/+IXOmLE7b7hWvLYLta6iFvUdfzC06kSZfLNnXpo6WJfWDKocgv v5Ia0uXsIuxDjkBbDCydKm6o6qSeOxj+vEKpsiFFPFeCXn6zXq3h++em4YGl5dUG fMP9DarYyXL7HSp1sL5bYJYnYEj+BUPVBf5uFAs2LA6E2XyV5apGQzJiZ1gBG34W xt/uwmtpUVpBB5PQmZJ7byi5/YuDuPOXyeTXK7qKaF2OvyDE/bpRBSzN+mzFKM6X U7iyA/R0h9UyIIefltClXwK6pamSoR3xSm206rXWbGUGdG97fBeHs1W9fsqcyuoC DtEpFvSY1Su+RQKZD1MVW+nxj+jtuT4SoT1MNPsCdwnCKRV+7qMkQhYwB5IdVq1g tAd/eRPjRmA3/oAJ63igGZHULoqqBP7YHhmzc3c2rezBUNakS1CtdBgXrviM/2zL jQFajNbc+kTDZX8oJsjYN43hu/lJ5/A+/gUZ8MyAPZGfGt9OEAAhd8Ig7ZQBVq45 cMgJMfJFIb5n8tD3D3XYaXisKsA7HnTk5ScSTZ3w3/XuR2A3fsg+6djLqQkKC6jS +xVErWz+PJjuE0uEbelV =O8mZ -----END PGP SIGNATURE----- --Sig_/P4Zy5anbcafpsmzP/Y_eDUO-- -- 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/