70 		} md;  member
252 bd_md_add_seg(struct obj *md, int type, u_long addr, u_long size)  in bd_md_add_seg()  argument
260 	seg->parent = md;  in bd_md_add_seg()
264 	md->u.md.seg[type] = seg;  in bd_md_add_seg()
265 	md->u.md.nsegs[type] = 1;  in bd_md_add_seg()
270 bd_md_del_segs(struct obj *md, int type, int unmap)  in bd_md_del_segs()  argument
274 	for (seg = md->u.md.seg[type]; seg != NULL; seg = seg0) {  in bd_md_del_segs()
287 	struct obj *md, *tag;  in bd_md_create()  local
293 	md = obj_alloc(OBJ_TYPE_MD);  in bd_md_create()
294 	if (md == NULL)  in bd_md_create()
299 	ioc.u.md.tag = tag->key;  in bd_md_create()
300 	ioc.u.md.flags = flags;  in bd_md_create()
302 		obj_free(md);  in bd_md_create()
306 	md->refcnt = 1;  in bd_md_create()
307 	md->fd = tag->fd;  in bd_md_create()
308 	md->parent = tag;  in bd_md_create()
310 	md->key = ioc.result;  in bd_md_create()
311 	return (md->oid);  in bd_md_create()
318 	struct obj *md;  in bd_md_destroy()  local
320 	md = obj_lookup(mdid, OBJ_TYPE_MD);  in bd_md_destroy()
321 	if (md == NULL)  in bd_md_destroy()
326 	ioc.key = md->key;  in bd_md_destroy()
327 	if (ioctl(md->fd, PROTO_IOC_BUSDMA, &ioc) == -1)  in bd_md_destroy()
330 	md->parent->refcnt--;  in bd_md_destroy()
331 	obj_free(md);  in bd_md_destroy()
339 	struct obj *md;  in bd_md_load()  local
342 	md = obj_lookup(mdid, OBJ_TYPE_MD);  in bd_md_load()
343 	if (md == NULL)  in bd_md_load()
348 	ioc.key = md->key;  in bd_md_load()
349 	ioc.u.md.flags = flags;  in bd_md_load()
350 	ioc.u.md.virt_addr = (uintptr_t)buf;  in bd_md_load()
351 	ioc.u.md.virt_size = len;  in bd_md_load()
352 	if (ioctl(md->fd, PROTO_IOC_BUSDMA, &ioc) == -1)  in bd_md_load()
355 	error = bd_md_add_seg(md, BUSDMA_MD_VIRT, ioc.u.md.virt_addr, len);  in bd_md_load()
356 	error = bd_md_add_seg(md, BUSDMA_MD_PHYS, ioc.u.md.phys_addr, len);  in bd_md_load()
357 	error = bd_md_add_seg(md, BUSDMA_MD_BUS, ioc.u.md.bus_addr, len);  in bd_md_load()
365 	struct obj *md;  in bd_md_unload()  local
368 	md = obj_lookup(mdid, OBJ_TYPE_MD);  in bd_md_unload()
369 	if (md == NULL)  in bd_md_unload()
374 	ioc.key = md->key;  in bd_md_unload()
375 	if (ioctl(md->fd, PROTO_IOC_BUSDMA, &ioc) == -1)  in bd_md_unload()
378 	bd_md_del_segs(md, BUSDMA_MD_VIRT, 0);  in bd_md_unload()
379 	bd_md_del_segs(md, BUSDMA_MD_PHYS, 0);  in bd_md_unload()
380 	bd_md_del_segs(md, BUSDMA_MD_BUS, 0);  in bd_md_unload()
388 	struct obj *md, *tag;  in bd_mem_alloc()  local
396 	md = obj_alloc(OBJ_TYPE_MD);  in bd_mem_alloc()
397 	if (md == NULL)  in bd_mem_alloc()
402 	ioc.u.md.tag = tag->key;  in bd_mem_alloc()
403 	ioc.u.md.flags = flags;  in bd_mem_alloc()
405 		obj_free(md);  in bd_mem_alloc()
409 	md->refcnt = 1;  in bd_mem_alloc()
410 	md->fd = tag->fd;  in bd_mem_alloc()
411 	md->parent = tag;  in bd_mem_alloc()
413 	md->key = ioc.result;  in bd_mem_alloc()
416 	assert(ioc.u.md.phys_nsegs == 1);  in bd_mem_alloc()
417 	assert(ioc.u.md.bus_nsegs == 1);  in bd_mem_alloc()
418 	error = bd_md_add_seg(md, BUSDMA_MD_PHYS, ioc.u.md.phys_addr,  in bd_mem_alloc()
420 	error = bd_md_add_seg(md, BUSDMA_MD_BUS, ioc.u.md.bus_addr,  in bd_mem_alloc()
424 	    MAP_NOCORE | MAP_SHARED, md->fd, ioc.u.md.phys_addr);  in bd_mem_alloc()
427 	error = bd_md_add_seg(md, BUSDMA_MD_VIRT, addr, tag->u.tag.maxsz);  in bd_mem_alloc()
429 	return (md->oid);  in bd_mem_alloc()
434 	ioc.key = md->key;  in bd_mem_alloc()
435 	ioctl(md->fd, PROTO_IOC_BUSDMA, &ioc);  in bd_mem_alloc()
436 	md->parent->refcnt--;  in bd_mem_alloc()
437 	obj_free(md);  in bd_mem_alloc()
445 	struct obj *md;  in bd_mem_free()  local
447 	md = obj_lookup(mdid, OBJ_TYPE_MD);  in bd_mem_free()
448 	if (md == NULL)  in bd_mem_free()
453 	ioc.key = md->key;  in bd_mem_free()
454 	if (ioctl(md->fd, PROTO_IOC_BUSDMA, &ioc) == -1)  in bd_mem_free()
457 	bd_md_del_segs(md, BUSDMA_MD_VIRT, 1);  in bd_mem_free()
458 	bd_md_del_segs(md, BUSDMA_MD_PHYS, 0);  in bd_mem_free()
459 	bd_md_del_segs(md, BUSDMA_MD_BUS, 0);  in bd_mem_free()
460 	md->parent->refcnt--;  in bd_mem_free()
461 	obj_free(md);  in bd_mem_free()
468 	struct obj *md, *seg;  in bd_md_first_seg()  local
470 	md = obj_lookup(mdid, OBJ_TYPE_MD);  in bd_md_first_seg()
471 	if (md == NULL)  in bd_md_first_seg()
479 	seg = md->u.md.seg[space];  in bd_md_first_seg()
540 	struct obj *md;  in bd_sync()  local
542 	md = obj_lookup(mdid, OBJ_TYPE_MD);  in bd_sync()
543 	if (md == NULL)  in bd_sync()
548 	ioc.key = md->key;  in bd_sync()
552 	if (ioctl(md->fd, PROTO_IOC_BUSDMA, &ioc) == -1)  in bd_sync()