panfrost: Implement SSBOs and compute builtins
This, plus an additional 2-line out-of-tree hack (64-bit arithmetic is still not implemented), is enough to get a whole bunch of GLES3.1 compute shader tests in dEQP passing.
This, plus an additional 2-line out-of-tree hack (64-bit arithmetic is still not implemented), is enough to get a whole bunch of GLES3.1 compute shader tests in dEQP passing.