Comment # 14 on bug 82455 from Alex Deucher

(In reply to comment #13)
> (In reply to comment #12)
> > Don't we need to endian-swap the whole IB for big endian?
> 
> That depends on which engine you use. IIRC the CP, DMA and UVD till SI can
> do endian swap in hardware, but the support got removed for DMA with CIK.

SDMA on CIK can still do endian swaps for IBs.