From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ben Widawsky <benjamin.widawsky@intel.com>
Subject: [PATCH 3/6] drm/i915: Opportunistically reduce flushing
	at execbuf
Date: Mon,  9 Feb 2015 13:54:16 -0800
Message-ID: <1423518859-6199-4-git-send-email-benjamin.widawsky@intel.com>
References: <1423518859-6199-1-git-send-email-benjamin.widawsky@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 mga01.intel.com (mga01.intel.com [192.55.52.88])
 by gabe.freedesktop.org (Postfix) with ESMTP id DF4106E1B6
 for <intel-gfx@lists.freedesktop.org>; Mon,  9 Feb 2015 13:54:26 -0800 (PST)
In-Reply-To: <1423518859-6199-1-git-send-email-benjamin.widawsky@intel.com>
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: Intel GFX <intel-gfx@lists.freedesktop.org>
Cc: Ben Widawsky <ben@bwidawsk.net>, Ben Widawsky <benjamin.widawsky@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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==