xd_dmamem_alloc
int xd_dmamem_alloc(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *,
if ((error = xd_dmamem_alloc(xdcsc->dmatag, xdcsc->auxmap,
if ((error = xd_dmamem_alloc(xdc->dmatag, xdc->iopmap, &seg, &rseg,
if ((error = xd_dmamem_alloc(xdc->dmatag, xdc->auxmap, &seg, &rseg,