Hi Yakir, Am Montag, 21. März 2016, 20:17:46 schrieb Yakir Yang: > On 03/21/2016 07:29 PM, Heiko Stübner wrote: > > 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 ;) Looking at the libdrm sources on cgit.freedesktop.org, I did not find any specific manual on submitting patches. But looking at the dri-list archive, dri-devel@xxxxxxxxxxxxxxxxxxxxx is the right list and looking at the libdrm history it looks like Emil Velikov <emil.l.velikov@xxxxxxxxx> seems to be doing maintenance-stuff in libdrm. And as a 3rd recipient, please also include the linux-rockchip list. @Emil, please shout if I read that wrong :-) Hope that helps Heiko -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html