IOASIC_DMA_BLOCKSIZE
roundup(size, IOASIC_DMA_BLOCKSIZE);
BBA_MAX_DMA_SEGMENTS, IOASIC_DMA_BLOCKSIZE,
BBA_MAX_DMA_SEGMENTS, IOASIC_DMA_BLOCKSIZE,
return IOASIC_DMA_BLOCKSIZE;
#define BBA_DMABUF_SIZE (BBA_MAX_DMA_SEGMENTS*IOASIC_DMA_BLOCKSIZE)
#define BBA_DMABUF_ALIGN IOASIC_DMA_BLOCKSIZE