scu_dmam
bus_dmamap_sync(sc->scu_dmat, sc->scu_dmam,
bus_dmamap_sync(sc->scu_dmat, sc->scu_dmam, 0,
bus_dmamap_sync(sc->scu_dmat, sc->scu_dmam,
bus_dmamap_sync(sc->scu_dmat, sc->scu_dmam,
bus_dmamap_sync(sc->scu_dmat, sc->scu_dmam, 0, sc->scu_allocsize,
bus_dmamap_sync(sc->scu_dmat, sc->scu_dmam,
BUS_DMA_NOWAIT, &sc->scu_dmam) != 0) {
err = bus_dmamap_load(sc->scu_dmat, sc->scu_dmam, sc->scu_dma_addr,
paddr0 = (sc->scu_dmam->dm_segs[0].ds_addr & 0x00ffffff);