Hi Andreas, On 03/22/2016 06:24 PM, Andreas F?rber wrote: > Hi Yakir, > > Am 21.03.2016 um 13:17 schrieb Yakir Yang: >> On 03/21/2016 07:29 PM, Heiko St?bner wrote: >>> 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. >> 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 ;) > If you're using Exynos as an example, please keep in mind that the > libdrm license is MIT/X11, not GPL as the kernel. For our Linux distro > we had to disable some Exynos parts because they snuck some GPL code in > there and redistributing libdrm under GPL would cause a big headache > (review of all packages directly or indirectly linking against it). Hmmm... I just saw exynos_drm.h still declared the GNU license, is it convince for you to share some specific example here ;) Thanks, - Yakir > Thanks, > Andreas >
