From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH v2] agp/intel: Serialise after GTT updates
Date: Tue, 27 Jan 2015 15:58:05 +0100
Message-ID: <20150127145805.GC4764@phenom.ffwll.local>
References: <1421234459-21424-1-git-send-email-chris@chris-wilson.co.uk>
 <1422269230-24850-1-git-send-email-chris@chris-wilson.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mail-wi0-f174.google.com (mail-wi0-f174.google.com
 [209.85.212.174])
 by gabe.freedesktop.org (Postfix) with ESMTP id 637CB6E4B4
 for <intel-gfx@lists.freedesktop.org>; Tue, 27 Jan 2015 06:56:48 -0800 (PST)
Received: by mail-wi0-f174.google.com with SMTP id n3so5396718wiv.1
 for <intel-gfx@lists.freedesktop.org>; Tue, 27 Jan 2015 06:56:47 -0800 (PST)
Content-Disposition: inline
In-Reply-To: <1422269230-24850-1-git-send-email-chris@chris-wilson.co.uk>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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