From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f42.google.com ([74.125.82.42]:38885 "EHLO mail-wm0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932492AbcASKWO (ORCPT ); Tue, 19 Jan 2016 05:22:14 -0500 Received: by mail-wm0-f42.google.com with SMTP id b14so162970795wmb.1 for ; Tue, 19 Jan 2016 02:22:13 -0800 (PST) Subject: Re: Recommendation for cherry-pick between 3.12 and 4.2: 0a363e85cdaf To: Ilia Mirkin , stable References: Cc: "nouveau@lists.freedesktop.org" , Hans de Goede , Ben Skeggs From: Jiri Slaby Message-ID: <569E0E53.4010201@suse.cz> Date: Tue, 19 Jan 2016 11:22:11 +0100 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: stable-owner@vger.kernel.org List-ID: Hi, On 01/17/2016, 08:28 PM, Ilia Mirkin wrote: > I'd like to recommend backporting this commit: > > commit 0a363e85cdafbceeee6a49b91c604d0d4d070dc7 > Author: Hans de Goede > Date: Thu Jul 23 17:20:12 2015 +0200 > > drm/nouveau/nv46: Change mc subdev oclass from nv44 to nv4c > > This disables MSI by default on G72 (NV46) devices where it's > apparently a bit buggy. We have a later patch which turns MSI back on > with a quirk, but it isn't extremely necessary for these devices, and > disabling (or, rather, not enabling) MSI is a pretty safe thing to do. > > The patch went upstream in 4.3-rc1, however I believe that there are > still a number of kernels between 3.12 (where MSI was first enabled by > default - commit a27e56996) and 4.2 (inclusive) which are still being > maintained. To those maintainers, please consider including this in > your trees. But it needs commit fa8c9ac72fe0bcdf5bc7cc84e85cc2a1af53f9fd Author: Ilia Mirkin Date: Wed Feb 5 14:33:02 2014 -0500 drm/nv4c/mc: nv4x igp's have a different msi rearm register See https://bugs.freedesktop.org/show_bug.cgi?id=74492 which is only in 3.14. So I cannot take it into 3.12. thanks, -- js suse labs