iommu_map_window
static int iommu_map_window(ddi_dma_impl_t *, off_t, size_t);
if ((rval = iommu_map_window(mp, newoff, winsize)) != DDI_SUCCESS)
iommu_map_window(pci_p->pci_iommu_p, mp, win);
extern void iommu_map_window(iommu_t *iommu_p,