mips/mips/busdma_machdep.c

167 static void free_bounce_page(bus_dma_tag_t dmat, struct bounce_page *bpage);
1055 	struct bounce_page *bpage;
1057 	while ((bpage = STAILQ_FIRST(&map->bpages)) != NULL) {
1059 		free_bounce_page(dmat, bpage);
1176 	struct bounce_page *bpage;
1178 	STAILQ_FOREACH(bpage, &map->bpages, links) {
1180 			if (bpage->datavaddr != 0)
1181 				bcopy((void *)bpage->datavaddr,
1182 				    (void *)(bpage->vaddr_nocache != 0 ?
1183 					     bpage->vaddr_nocache :
1184 					     bpage->vaddr),
1185 				    bpage->datacount);
1187 				physcopyout(bpage->dataaddr,
1188 				    (void *)(bpage->vaddr_nocache != 0 ?
1189 					     bpage->vaddr_nocache :
1190 					     bpage->vaddr),
1191 				    bpage->datacount);
1192 			if (bpage->vaddr_nocache == 0) {
1193 				mips_dcache_wb_range(bpage->vaddr,
1194 				    bpage->datacount);
1199 			if (bpage->vaddr_nocache == 0) {
1200 				mips_dcache_inv_range(bpage->vaddr,
1201 				    bpage->datacount);
1203 			if (bpage->datavaddr != 0)
1204 				bcopy((void *)(bpage->vaddr_nocache != 0 ?
1205 				    bpage->vaddr_nocache : bpage->vaddr),
1206 				    (void *)bpage->datavaddr, bpage->datacount);
1208 				physcopyin((void *)(bpage->vaddr_nocache != 0 ?
1209 				    bpage->vaddr_nocache : bpage->vaddr),
1210 				    bpage->dataaddr, bpage->datacount);
1352 		struct bounce_page *bpage;
1354 		bpage = (struct bounce_page *)malloc(sizeof(*bpage), M_BUSDMA,
1357 		if (bpage == NULL)
1359 		bpage->vaddr = (vm_offset_t)contigmalloc(PAGE_SIZE, M_BOUNCE,
1364 		if (bpage->vaddr == 0) {
1365 			free(bpage, M_BUSDMA);
1368 		bpage->busaddr = pmap_kextract(bpage->vaddr);
1369 		bpage->vaddr_nocache =
1370 		    (vm_offset_t)pmap_mapdev(bpage->busaddr, PAGE_SIZE);
1372 		STAILQ_INSERT_TAIL(&bz->bounce_page_list, bpage, links);
1407 	struct bounce_page *bpage;
1422 	bpage = STAILQ_FIRST(&bz->bounce_page_list);
1423 	if (bpage == NULL)
1433 		bpage->vaddr |= addr & PAGE_MASK;
1434 		bpage->busaddr |= addr & PAGE_MASK;
1436 	bpage->datavaddr = vaddr;
1437 	bpage->dataaddr = addr;
1438 	bpage->datacount = size;
1439 	STAILQ_INSERT_TAIL(&(map->bpages), bpage, links);
1440 	return (bpage->busaddr);
1444 free_bounce_page(bus_dma_tag_t dmat, struct bounce_page *bpage)
1450 	bpage->datavaddr = 0;
1451 	bpage->datacount = 0;
1458 		bpage->vaddr &= ~PAGE_MASK;
1459 		bpage->busaddr &= ~PAGE_MASK;
1463 	STAILQ_INSERT_HEAD(&bz->bounce_page_list, bpage, links);