On 03/15/2012 07:50 PM, Dave Airlie wrote: >> G2D is a 2D graphic accelerator that supports Bit Block Transfer. This >> G2D driver is exynos drm specific and supports only exynos4x12 series. >> user application fills command set in cmdlist and once dma start request >> these cmdlists are parsed and performed by dma. > Where is this block documented or a pointer to the corresponding open > userspace user code?
I attach simple g2dtest program patch. The base of this patch is master branch of lastest libdrm git. This user progrem can test just solid color fill example. I will cleanup and update it for more operations later. Thanks. > Again the ioctls look like they need to be depointered and use __u64. > > It would be nice if you could document how the command stream and engine work. > > How does userspace pass addresses to it? straight or via gem objects? > how does it > stop userspace blt to places it shouldn't etc. > > I'm getting the feeling this accel enabled driver needs a lot more of > a commit message > and lot more documentation on what it can be used for. > > Dave. > _______________________________________________ > dri-devel mailing list > dri-devel at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel >
