Instead of busywaiting for the GPU to finish a fence, use the new kernel
interface to wait for fence completion.
This code needs completion - in particular, we should fall back to
busywaiting (using the nokernel function that's in radeon_drm_bo.c) if the
kernel doesn't support the new interface.
Instead of busywaiting for the GPU to finish a fence, use the new kernel
interface to wait for fence completion.
This code needs completion - in particular, we should fall back to
busywaiting (using the nokernel function that's in radeon_drm_bo.c) if the
kernel doesn't support the new interface.
