"In the wee hours of the morning, Greg Kroah-Hartman submitted a
set of five patches to the DRI development mailing list. One patch
added in an Intel Poulsbo DRM driver while the other four made
changes to the DRM core itself in order to accommodate this driver
and its needs. Greg and Intel hoped to push this driver into the
kernel staging area since they concede that the user-space API
isn't yet stable as they continue work on a proper memory
management system. Long story short, these patches were immediately
declined by David Airlie, the Linux kernel DRM maintainer.
"David rejected this code on the basis that it's mostly
undocumented, the fact that Intel's 3D driver is closed-source, and
the X.Org driver isn't part of X.Org."