Implementing the accelerated DRI/DRM driver for a pure 2D graphics card?

Keith Packard keithp at
Mon Aug 11 21:15:43 PDT 2014

Tom Li <biergaizi2009 at> writes:

> So I just stuck at here. Is there a standard way to just let
> userspace/DDX to access the 2D drawing processor by the exported
> interface or DRI/DRM layer?

The Intel UXA driver uses the 2D engine for simple X acceleration
through the kernel DRI/GEM interfaces. The portion of that interface
designed to support accelerated graphics operations is entirely
GPU-specific, so you would design that based on how your card works, and
the resulting 2D driver would be chipset specific as well, using the
custom kernel interfaces you create.

keith.packard at
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