From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Romanick <idr@freedesktop.org>
Subject: Re: [PATCH] i965: Embrace "unlimited" GTT mmap support
Date: Thu, 25 Aug 2016 13:43:53 -0700
Message-ID: <8428b552-ad29-834f-2658-c6b3ec768a5e@freedesktop.org>
References: <20160824194244.27583-1-chris@chris-wilson.co.uk>
 <20160824194244.27583-2-chris@chris-wilson.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <mesa-dev-bounces@lists.freedesktop.org>
In-Reply-To: <20160824194244.27583-2-chris@chris-wilson.co.uk>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/mesa-dev>,
 <mailto:mesa-dev-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/mesa-dev>
List-Post: <mailto:mesa-dev@lists.freedesktop.org>
List-Help: <mailto:mesa-dev-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>,
 <mailto:mesa-dev-request@lists.freedesktop.org?subject=subscribe>
Errors-To: mesa-dev-bounces@lists.freedesktop.org
Sender: "mesa-dev" <mesa-dev-bounces@lists.freedesktop.org>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
Cc: mesa-dev@lists.freedesktop.org, Kenneth Graunke <kenneth@whitecape.org>
List-Id: intel-gfx@lists.freedesktop.org
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