From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [PATCH] x86/Sandy Bridge: reserve pages when integrated graphics is present Date: Thu, 15 Nov 2012 08:13:22 -0800 Message-ID: <20121115081322.74004a52@jbarnes-desktop> References: <1352925811-2598-1-git-send-email-jbarnes@virtuousgeek.org> <20121115124711.GA31504@khazad-dum.debian.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20121115124711.GA31504@khazad-dum.debian.net> Sender: linux-kernel-owner@vger.kernel.org To: Henrique de Moraes Holschuh Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org On Thu, 15 Nov 2012 10:47:11 -0200 Henrique de Moraes Holschuh wrote: > On Wed, 14 Nov 2012, Jesse Barnes wrote: > > + unsigned long bad_ranges[] = { > > + 0x20050000, > > + 0x20110000, > > + 0x20130000, > > + 0x20138000, > > + 0x40004000, > > Yikes. Can this be fixed through a microcode update? The kernel would > still need the workaround anyway, but at least you would be able to be quite > heavy-handed on it, and users could be warned of a better fix... No, this affects the logic on the GPU side, so there's no microcode way to fix it. -- Jesse Barnes, Intel Open Source Technology Center