unsigned long eeh_token_to_phys(unsigned long token)
{
if (REGION_ID(token) == EEH_REGION_ID) {
unsigned long vaddr = IO_TOKEN_TO_ADDR(token);
pte_t *ptep = find_linux_pte(ioremap_mm.pgd, vaddr);
unsigned long pa = pte_pagenr(*ptep) << PAGE_SHIFT;
return pa | (vaddr & (PAGE_SIZE-1));
} else
return token;
}
/* XXX This routine could be used with iterate_page() to replace
* unmap_uncached_page() and save a little code space but I didn't
* do that since I'm not certain whether this is the right path. -PB
*/
static void unmap_cached_pte(pte_t * pte, unsigned long arg)
{
pte_t page = *pte;
pte_clear(pte);
if (!pte_none(page)) {
if (pte_present(page)) {
unsigned long map_nr = pte_pagenr(page);
if (map_nr < max_mapnr)
__free_page(mem_map + map_nr);
} else {
printk(KERN_CRIT
"Whee.. Swapped out page in kernel page table\n");
}
}
}