drm/amdgpu: use the GTT windows for BO moves v2

This way we don't need to map the full BO at a time any more.

v2: use fixed windows for src/dst

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2 files changed