3b6b59b610
Async DMA has a special packet for contiguous pt updates which saves overhead. v2: leave the CP method enabled for now as doing the updates in the DMA rings is not working properly yet. v3: update for 2 level pts v4: rebase v5: drop pte/pde packet. doesn't seem to work on NI. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>