Function devmap_ptov

freebsd/kern/subr_devmap.c:213–227

* Look up the given physical address in the static mapping data and return the * corresponding virtual address, or NULL if not found. */

 * corresponding virtual address, or NULL if not found.
 */
void *
devmap_ptov(vm_paddr_t pa, vm_size_t size)
{
	const struct devmap_entry *pd;

	if (devmap_table == NULL)
		return (NULL);

	for (pd = devmap_table; pd->pd_size != 0; ++pd) {
		if (pa >= pd->pd_pa && pa + size <= pd->pd_pa + pd->pd_size)
			return ((void *)(pd->pd_va + (pa - pd->pd_pa)));
	}

	return (NULL);
}

/*
 * Look up the given virtual address in the static mapping data and return the