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

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Date:	Mon, 21 Mar 2016 20:17:46 +0800
From:	Yakir Yang <ykk@...k-chips.com>
To:	Heiko Stübner <heiko@...ech.de>
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 Heiko,

On 03/21/2016 07:29 PM, Heiko Stübner wrote:
> 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.

Got it, and I just saw exynos_fimg2d already landed at mainline libdrm. 
But I don't find the way to submit patches to libdrm, would you like 
share some helps here ;)

- Yakir

>
> Heiko
>
>
>