README
1 Note that current msm kernel driver is a bit strange. It provides a
2 DRM interface for GEM, which is basically sufficient to have DRI2
3 working. But it does not provide KMS. And interface to 2d and 3d
4 cores is via different other devices (/dev/kgsl-*). This is not
5 quite how I'd write a DRM driver, but at this stage it is useful for
6 xf86-video-freedreno and fdre (and eventual gallium driver) to be
7 able to work on existing kernel driver from QCOM, to allow to
8 capture cmdstream dumps from the binary blob drivers without having
9 to reboot. So libdrm_freedreno attempts to hide most of the crazy.
10 The intention is that when there is a proper kernel driver, it will
11 be mostly just changes in libdrm_freedreno to adapt the gallium
12 driver and xf86-video-freedreno (ignoring the fbdev->KMS changes).
13
14 So don't look at freedreno as an example of how to write a libdrm
15 module or a DRM driver.. it is just an attempt to paper over a non-
16 standard kernel driver architecture.
17