PAGE_KERNEL
pgprot = PAGE_KERNEL;
vaddr = vmap(pages, n_pages, VM_MAP_PUT_PAGES, PAGE_KERNEL);
return kmap_atomic_prot(pg, PAGE_KERNEL);
prot = ttm_io_prot(bo, mem, PAGE_KERNEL);
prot = ttm_io_prot(bo, mem, PAGE_KERNEL);
iter_tt->prot = ttm_prot_from_caching(tt->caching, PAGE_KERNEL);
iter_tt->prot = PAGE_KERNEL;