From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Wilson <chris@chris-wilson.co.uk>
Subject: Re: [PATCH 2/7] drm/i915: Keep a count of requests
 waiting for a slot on GPU
Date: Fri, 06 Apr 2018 21:16:51 +0100
Message-ID: <152304581164.23749.5574576484215087231@mail.alporthouse.com>
References: <20180405123923.22671-1-tvrtko.ursulin@linux.intel.com>
 <20180405123923.22671-3-tvrtko.ursulin@linux.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 fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 61DF389904
 for <Intel-gfx@lists.freedesktop.org>; Fri,  6 Apr 2018 20:16:57 +0000 (UTC)
In-Reply-To: <20180405123923.22671-3-tvrtko.ursulin@linux.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: Tvrtko Ursulin <tursulin@ursulin.net>, Intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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