Phoronix: It Will Be A While For Radeon Clover Support
It will be many, many weeks before AMD supports "Clover" for their Radeon GPUs on the open-source Linux DRM / Gallium3D stack. The support they're aiming for is the Radeon HD 5000 "Evergreen" series and newer, but this Clover state tracker to support OpenCL is still a ways out for those with ATI/AMD GPUs. A whiteboard drawing of the Radeon Clover TODO list was shown at XDC2011 Chicago by John Bridgman...
They really should focus clover for having an OpenCL for CPU's first.
Make it work with third party other implementations.
That's going to be important in the future.
That it just works with other stuff.