memremap_pages
addr = memremap_pages(&kvmppc_uvmem_pgmap, NUMA_NO_NODE);
ptr = memremap_pages(&chunk->pagemap, numa_node_id());
vaddr = memremap_pages(pgmap, NUMA_NO_NODE);
void *memremap_pages(struct dev_pagemap *pgmap, int nid);
ptr = memremap_pages(&devmem->pagemap, numa_node_id());
EXPORT_SYMBOL_GPL(memremap_pages);
ret = memremap_pages(pgmap, dev_to_node(dev));