The Hopper grouped GEMM wrapper selected the current NVVM TMA bindings only when the CUTLASS version prefix was exactly 4.6. A 4.7 wheel therefore fell back to the removed CpAsyncBulkTensorLoadMode/loadMode interface.
Detect the TMALoadMode capability directly, preserving the legacy fallback for older bindings. For example, 4.7 now uses the TMALoadMode/mode path and descriptor address-space cast.
Verification: Python syntax compilation and diff checks.
