From: Heiko =?ISO-8859-1?Q?St=FCbner?= <heiko@sntech.de>
To: Yakir Yang <ykk@rock-chips.com>
Cc: David Airlie <airlied@linux.ie>, Mark Yao <mark.yao@rock-chips.com>,
        Joonyoung Shim <jy0922.shim@samsung.com>,
        Kumar Gala <galak@codeaurora.org>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        Russell King <linux@arm.linux.org.uk>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-rockchip@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org
Subject: Re: [RFC PATCH v1 0/4] Add Rockchip RGA support
Date: Mon, 21 Mar 2016 12:29:35 +0100
Message-ID: <1511371.I0NIYzh3kP@diego>
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Hi Yakir,

Am Montag, 21. M?rz 2016, 17:28:38 schrieb Yakir Yang:
> This patch set would add the RGA direct rendering based 2d graphics
> acceleration module.

very cool to see that.

> This patch set is based on git repository below:
> git://people.freedesktop.org/~airlied/linux drm-next
> commit id: 568d7c764ae01f3706085ac8f0d8a8ac7e826bd7
> 
> And the RGA driver is based on Exynos G2D driver, it only manages the
> command lists received from user, so user should make the command list
> to data and registers needed by operation to use.
> 
> I have prepared an userspace demo application for testing:
> 	https://github.com/yakir-Yang/libdrm-rockchip
> That is a rockchip libdrm library, and I have write a simple test case
> "rockchip_rga_test" that would test the below RGA features:
> - solid
> - copy
> - rotation
> - flip
> - window clip
> - dithering

Did you submit your libdrm changes as well?

Userspace-interfaces need to be stable so the other side must also get 
accepted - even before the kernel change if I remember correctly.


Heiko