linux-kernel - Re: [RFC PATCH v1 0/4] Add Rockchip RGA support

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Message-ID: <1511371.I0NIYzh3kP@diego>
Date:	Mon, 21 Mar 2016 12:29:35 +0100
From:	Heiko Stübner <heiko@...ech.de>
To:	Yakir Yang <ykk@...k-chips.com>
Cc:	David Airlie <airlied@...ux.ie>,
	Mark Yao <mark.yao@...k-chips.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Russell King <linux@....linux.org.uk>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC PATCH v1 0/4] Add Rockchip RGA support

Hi Yakir,

Am Montag, 21. März 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