From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: Re: locking&resource refcounting for ttm_bo_kmap/dma_buf_vmap
Date: Thu, 21 Nov 2019 09:43:47 +0100
Message-ID: <CAKMK7uHWcReSJeRpxxXhxmj02YxViE10gAJ0pegjhcVFhsg5gw@mail.gmail.com>
References: <CAKMK7uHagBk6nGKenWZfd-ufb0h=WjzDVhctJyZ7g0Pi+H0+5Q@mail.gmail.com>
 <07cf5eed-558c-0434-a2ed-6800271efaac@suse.de>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
Received: from mail-oi1-x22b.google.com (mail-oi1-x22b.google.com
 [IPv6:2607:f8b0:4864:20::22b])
 by gabe.freedesktop.org (Postfix) with ESMTPS id B1A6B6EBCE
 for <dri-devel@lists.freedesktop.org>; Thu, 21 Nov 2019 08:43:59 +0000 (UTC)
Received: by mail-oi1-x22b.google.com with SMTP id l202so2505286oig.1
 for <dri-devel@lists.freedesktop.org>; Thu, 21 Nov 2019 00:43:59 -0800 (PST)
In-Reply-To: <07cf5eed-558c-0434-a2ed-6800271efaac@suse.de>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Thomas Hellstrom <thellstrom@vmware.com>, =?UTF-8?Q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>, dri-devel <dri-devel@lists.freedesktop.org>, Gerd Hoffmann <kraxel@redhat.com>
List-Id: dri-devel@lists.freedesktop.org
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==