Cross Reference: /src/sys/arch/evbppc/wii/dev/bwdsp.c

Lines Matching refs:dma
88     size_t align, struct bwdsp_dma *dma)
92 	dma->dma_size = size;
93 	error = bus_dmamem_alloc(sc->sc_dmat, dma->dma_size, align, 0,
94 	    dma->dma_segs, 1, &dma->dma_nsegs, BUS_DMA_WAITOK);
98 	error = bus_dmamem_map(sc->sc_dmat, dma->dma_segs, dma->dma_nsegs,
99 	    dma->dma_size, &dma->dma_addr, BUS_DMA_WAITOK | BWDSP_MAP_FLAGS);
103 	error = bus_dmamap_create(sc->sc_dmat, dma->dma_size, dma->dma_nsegs,
104 	    dma->dma_size, 0, BUS_DMA_WAITOK, &dma->dma_map);
108 	error = bus_dmamap_load(sc->sc_dmat, dma->dma_map, dma->dma_addr,
109 	    dma->dma_size, NULL, BUS_DMA_WAITOK);
116 	bus_dmamap_destroy(sc->sc_dmat, dma->dma_map);
118 	bus_dmamem_unmap(sc->sc_dmat, dma->dma_addr, dma->dma_size);
120 	bus_dmamem_free(sc->sc_dmat, dma->dma_segs, dma->dma_nsegs);
126 bwdsp_freedma(struct bwdsp_softc *sc, struct bwdsp_dma *dma)
128 	bus_dmamap_unload(sc->sc_dmat, dma->dma_map);
129 	bus_dmamap_destroy(sc->sc_dmat, dma->dma_map);
130 	bus_dmamem_unmap(sc->sc_dmat, dma->dma_addr, dma->dma_size);
131 	bus_dmamem_free(sc->sc_dmat, dma->dma_segs, dma->dma_nsegs);
181 	struct bwdsp_dma *dma;
184 	dma = kmem_alloc(sizeof(*dma), KM_SLEEP);
186 	error = bwdsp_allocdma(sc, size, DSP_DMA_ALIGN, dma);
188 		kmem_free(dma, sizeof(*dma));
189 		device_printf(sc->sc_dev, "couldn't allocate DMA memory (%d)\n",
194 	LIST_INSERT_HEAD(&sc->sc_dmalist, dma, dma_list);
196 	return dma->dma_addr;
203 	struct bwdsp_dma *dma;
205 	LIST_FOREACH(dma, &sc->sc_dmalist, dma_list)
206 		if (dma->dma_addr == addr) {
207 			bwdsp_freedma(sc, dma);
208 			LIST_REMOVE(dma, dma_list);
209 			kmem_free(dma, sizeof(*dma));
268 	struct bwdsp_dma *dma;
276 	LIST_FOREACH(dma, &sc->sc_dmalist, dma_list)
277 		if (dma->dma_addr == start) {
278 			pstart = dma->dma_map->dm_segs[0].ds_addr;
292 	/* Start DMA transfer */
303 	/* Stop DMA transfer */
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