With the patches, the groundwork is laid for sharing more assets between OpenGL and OpenCL/HSA. Currently, this interoperability covers buffer and texture sharing.
This is continuing from the work talked about a few weeks ago with the broader issue of AMD Is Looking At A Interoperability Interface For OpenCL Outside Of Mesa. That public interface would be present in the DRI state tracker, libGL, and libEGL.
More details on this RadeonSI interop prep work for OpenGL/OpenCL sharing of buffers/textures can be found via this patch series. Hopefully all of the code will be prepped in time for the Mesa 11.3 release in about three months.