Lines Matching defs:dma

87     struct gve_dma_handle *dma)
104 	    &dma->tag);
111 	err = bus_dmamem_alloc(dma->tag, (void **) &dma->cpu_addr,
113 	    &dma->map);
121 	dma->bus_addr = (bus_addr_t)-1;
122 	err = bus_dmamap_load(dma->tag, dma->map, dma->cpu_addr, size,
123 	    gve_dmamap_load_callback, &dma->bus_addr, BUS_DMA_NOWAIT);
124 	if (err != 0 || dma->bus_addr == (bus_addr_t)-1) {
132 	bus_dmamem_free(dma->tag, dma->cpu_addr, dma->map);
134 	bus_dma_tag_destroy(dma->tag);
136 	dma->tag = NULL;
142 gve_dma_free_coherent(struct gve_dma_handle *dma)
144 	bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
145 	bus_dmamap_unload(dma->tag, dma->map);
146 	bus_dmamem_free(dma->tag, dma->cpu_addr, dma->map);
147 	bus_dma_tag_destroy(dma->tag);
152     struct gve_dma_handle *dma)
169 	    &dma->tag);
176 	err = bus_dmamap_create(dma->tag, BUS_DMA_COHERENT, &dma->map);
184 	dma->bus_addr = (bus_addr_t)-1;
185 	err = bus_dmamap_load(dma->tag, dma->map, dma->cpu_addr, size,
186 	    gve_dmamap_load_callback, &dma->bus_addr, BUS_DMA_WAITOK);
187 	if (err != 0 || dma->bus_addr == (bus_addr_t)-1) {
196 	bus_dmamap_destroy(dma->tag, dma->map);
198 	bus_dma_tag_destroy(dma->tag);
200 	dma->tag = NULL;
206 gve_dmamap_destroy(struct gve_dma_handle *dma)
208 	bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
209 	bus_dmamap_unload(dma->tag, dma->map);
210 	bus_dmamap_destroy(dma->tag, dma->map);
211 	bus_dma_tag_destroy(dma->tag);