From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Wilson <chris@chris-wilson.co.uk>
Subject: [PATCH 23/32] drm/i915: Allow multiple user handles to
 the same VM
Date: Wed, 17 Apr 2019 08:56:48 +0100
Message-ID: <20190417075657.19456-23-chris@chris-wilson.co.uk>
References: <20190417075657.19456-1-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 fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 2C37589FF9
 for <intel-gfx@lists.freedesktop.org>; Wed, 17 Apr 2019 07:57:16 +0000 (UTC)
In-Reply-To: <20190417075657.19456-1-chris@chris-wilson.co.uk>
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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=