297 	ocs_dma_t	*dma = arg;  in ocs_dma_load()  local
301 		dma->phys = 0;  in ocs_dma_load()
303 		dma->phys = seg->ds_addr;  in ocs_dma_load()
317 ocs_dma_free(ocs_os_handle_t os, ocs_dma_t *dma)  in ocs_dma_free()  argument
321 	if (!dma) {  in ocs_dma_free()
322 		device_printf(ocs->dev, "%s: bad parameter(s) dma=%p\n", __func__, dma);  in ocs_dma_free()
326 	if (dma->size == 0) {  in ocs_dma_free()
330 	if (dma->map) {  in ocs_dma_free()
331 		bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_POSTREAD |  in ocs_dma_free()
333 		bus_dmamap_unload(dma->tag, dma->map);  in ocs_dma_free()
336 	if (dma->virt) {  in ocs_dma_free()
337 		bus_dmamem_free(dma->tag, dma->virt, dma->map);  in ocs_dma_free()
338 		bus_dmamap_destroy(dma->tag, dma->map);  in ocs_dma_free()
340 	bus_dma_tag_destroy(dma->tag);  in ocs_dma_free()
342 	bzero(dma, sizeof(ocs_dma_t));  in ocs_dma_free()
359 ocs_dma_alloc(ocs_os_handle_t os, ocs_dma_t *dma, size_t size, size_t align)  in ocs_dma_alloc()  argument
363 	if (!dma || !size) {  in ocs_dma_alloc()
365 				__func__, dma, size);  in ocs_dma_alloc()
369 	bzero(dma, sizeof(ocs_dma_t));  in ocs_dma_alloc()
374 				size, 1, size, 0, NULL, NULL, &dma->tag)) {  in ocs_dma_alloc()
379 	dma->size = size;  in ocs_dma_alloc()
382 	if (bus_dmamem_alloc(dma->tag, &dma->virt, BUS_DMA_NOWAIT | BUS_DMA_COHERENT,  in ocs_dma_alloc()
383 				&dma->map)) {  in ocs_dma_alloc()
385 		ocs_dma_free(ocs, dma);  in ocs_dma_alloc()
389 	dma->alloc = dma->virt;  in ocs_dma_alloc()
392 	if (bus_dmamap_load(dma->tag, dma->map, dma->virt, dma->size, ocs_dma_load,  in ocs_dma_alloc()
393 				dma, 0)) {  in ocs_dma_alloc()
395 		ocs_dma_free(ocs, dma);  in ocs_dma_alloc()
400 	if (0 == dma->phys) {  in ocs_dma_alloc()
402 		ocs_dma_free(ocs, dma);  in ocs_dma_alloc()
422 ocs_dma_sync(ocs_dma_t *dma, uint32_t flags)  in ocs_dma_sync()  argument
424 	bus_dmamap_sync(dma->tag, dma->map, flags);  in ocs_dma_sync()
428 ocs_dma_copy_in(ocs_dma_t *dma, void *buffer, uint32_t buffer_length)  in ocs_dma_copy_in()  argument
430 	if (!dma)  in ocs_dma_copy_in()
436 	if (buffer_length > dma->size)  in ocs_dma_copy_in()
437 		buffer_length = dma->size;  in ocs_dma_copy_in()
438 	ocs_memcpy(dma->virt, buffer, buffer_length);  in ocs_dma_copy_in()
439 	dma->len = buffer_length;  in ocs_dma_copy_in()
444 ocs_dma_copy_out(ocs_dma_t *dma, void *buffer, uint32_t buffer_length)  in ocs_dma_copy_out()  argument
446 	if (!dma)  in ocs_dma_copy_out()
452 	if (buffer_length > dma->len)  in ocs_dma_copy_out()
453 		buffer_length = dma->len;  in ocs_dma_copy_out()
454 	ocs_memcpy(buffer, dma->virt, buffer_length);  in ocs_dma_copy_out()