116 	struct sf_buf *sf;  in dmar_idmap_nextlvl()  local
133 	pte = iommu_map_pgtbl(tbl->pgtbl_obj, idx, IOMMU_PGF_WAITOK, &sf);  in dmar_idmap_nextlvl()
153 	iommu_unmap_pgtbl(sf);  in dmar_idmap_nextlvl()
327     int flags, vm_pindex_t *idxp, struct sf_buf **sf)  in dmar_pgtbl_map_pte()  argument
338 	if (*sf != NULL && idx == *idxp) {  in dmar_pgtbl_map_pte()
339 		pte = (iommu_pte_t *)sf_buf_kva(*sf);  in dmar_pgtbl_map_pte()
341 		if (*sf != NULL)  in dmar_pgtbl_map_pte()
342 			iommu_unmap_pgtbl(*sf);  in dmar_pgtbl_map_pte()
345 		pte = iommu_map_pgtbl(domain->pgtbl_obj, idx, flags, sf);  in dmar_pgtbl_map_pte()
399 	struct sf_buf *sf;  in dmar_map_buf_locked()  local
411 	for (sf = NULL, pi = 0; size > 0; base += pg_sz, size -= pg_sz,  in dmar_map_buf_locked()
449 		pte = dmar_pgtbl_map_pte(domain, base, lvl, flags, &idx, &sf);  in dmar_map_buf_locked()
453 			if (sf != NULL)  in dmar_map_buf_locked()
454 				iommu_unmap_pgtbl(sf);  in dmar_map_buf_locked()
463 		vm_page_wire(sf_buf_page(sf));  in dmar_map_buf_locked()
465 	if (sf != NULL)  in dmar_map_buf_locked()
466 		iommu_unmap_pgtbl(sf);  in dmar_map_buf_locked()
546     struct sf_buf **sf, struct iommu_map_entry *entry, bool free_fs);
552 	struct sf_buf *sf;  in dmar_free_pgtbl_pde()  local
556 	sf = NULL;  in dmar_free_pgtbl_pde()
557 	pde = dmar_pgtbl_map_pte(domain, base, lvl, flags, &idx, &sf);  in dmar_free_pgtbl_pde()
558 	dmar_unmap_clear_pte(domain, base, lvl, flags, pde, &sf,  in dmar_free_pgtbl_pde()
564     int flags, iommu_pte_t *pte, struct sf_buf **sf,  in dmar_unmap_clear_pte()  argument
571 	m = sf_buf_page(*sf);  in dmar_unmap_clear_pte()
573 		iommu_unmap_pgtbl(*sf);  in dmar_unmap_clear_pte()
574 		*sf = NULL;  in dmar_unmap_clear_pte()
596 	struct sf_buf *sf;  in dmar_unmap_buf_locked()  local
628 	for (sf = NULL; size > 0; base += pg_sz, size -= pg_sz) {  in dmar_unmap_buf_locked()
637 			    &idx, &sf);  in dmar_unmap_buf_locked()
644 				    flags, pte, &sf, entry, false);  in dmar_unmap_buf_locked()
652 	if (sf != NULL)  in dmar_unmap_buf_locked()
653 		iommu_unmap_pgtbl(sf);  in dmar_unmap_buf_locked()