From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Gordon <david.s.gordon@intel.com>
Subject: [PATCH v4 3/3] drm/i915: optimise
	i915_gem_object_vmap_range() for small objects
Date: Mon, 22 Feb 2016 15:18:28 +0000
Message-ID: <1456154308-9342-4-git-send-email-david.s.gordon@intel.com>
References: <1456154308-9342-1-git-send-email-david.s.gordon@intel.com>
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 mga02.intel.com (mga02.intel.com [134.134.136.20])
 by gabe.freedesktop.org (Postfix) with ESMTP id 3E2EF890F7
 for <intel-gfx@lists.freedesktop.org>; Mon, 22 Feb 2016 15:19:05 +0000 (UTC)
In-Reply-To: <1456154308-9342-1-git-send-email-david.s.gordon@intel.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://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: <https://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: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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