From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Yao <mark.yao@rock-chips.com>
Subject: [PATCH v2] drm/rockchip: support non-iommu buffer path
Date: Wed, 20 Apr 2016 10:53:33 +0800
Message-ID: <1461120813-1117-1-git-send-email-mark.yao@rock-chips.com>
References: <1461032372-14630-1-git-send-email-mark.yao@rock-chips.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
In-Reply-To: <1461032372-14630-1-git-send-email-mark.yao@rock-chips.com>
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: David Airlie <airlied@linux.ie>, Heiko Stuebner <heiko@sntech.de>, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
List-Id: linux-rockchip.vger.kernel.org
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