From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH] drm/i915: Optimistically spin for the
 request completion
Date: Wed, 11 Mar 2015 11:13:59 +0100
Message-ID: <20150311101359.GG3800@phenom.ffwll.local>
References: <1426003579-32759-1-git-send-email-chris@chris-wilson.co.uk>
 <20150310161414.GC28952@nuc-i3427.alporthouse.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 mail-wi0-f173.google.com (mail-wi0-f173.google.com
 [209.85.212.173])
 by gabe.freedesktop.org (Postfix) with ESMTP id 8752C6E3E0
 for <intel-gfx@lists.freedesktop.org>; Wed, 11 Mar 2015 03:12:20 -0700 (PDT)
Received: by widex7 with SMTP id ex7so36813526wid.3
 for <intel-gfx@lists.freedesktop.org>; Wed, 11 Mar 2015 03:12:19 -0700 (PDT)
Content-Disposition: inline
In-Reply-To: <20150310161414.GC28952@nuc-i3427.alporthouse.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: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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