#define bus_map_single dma_map_single
#define bus_unmap_single dma_unmap_single
#define bus_alloc_consistent(_hwdev, _sz, _hdma) \
dma_alloc_coherent((_hwdev), (_sz), (_hdma), GFP_ATOMIC)
#define bus_free_consistent dma_free_coherent
#define bus_map_single dma_map_single
#define bus_unmap_single dma_unmap_single
#define bus_alloc_consistent(_hwdev, _sz, _hdma) \
dma_alloc_coherent((_hwdev), (_sz), (_hdma), GFP_ATOMIC)
#define bus_free_consistent dma_free_coherent