1#ifndef _PARISC_MMZONE_H 2#define _PARISC_MMZONE_H 3 4struct node_map_data { 5 pg_data_t pg_data; 6 struct page *adj_node_mem_map; 7}; 8 9extern struct node_map_data node_data[]; 10extern unsigned char *chunkmap; 11 12#define BADCHUNK ((unsigned char)0xff) 13#define CHUNKSZ (256*1024*1024) 14#define CHUNKSHIFT 28 15#define CHUNKMASK (~(CHUNKSZ - 1)) 16#define CHUNKNUM(paddr) ((paddr) >> CHUNKSHIFT) 17 18#define NODE_DATA(nid) (&node_data[nid].pg_data) 19#define NODE_MEM_MAP(nid) (NODE_DATA(nid)->node_mem_map) 20#define ADJ_NODE_MEM_MAP(nid) (node_data[nid].adj_node_mem_map) 21 22#define phys_to_page(paddr) \ 23 (ADJ_NODE_MEM_MAP(chunkmap[CHUNKNUM((paddr))]) \ 24 + ((paddr) >> PAGE_SHIFT)) 25 26#define virt_to_page(kvaddr) phys_to_page(__pa(kvaddr)) 27 28/* This is kind of bogus, need to investigate performance of doing it right */ 29#define VALID_PAGE(page) ((page - mem_map) < max_mapnr) 30 31#endif /* !_PARISC_MMZONE_H */ 32