1 #ifndef _PARISC_MMZONE_H
2 #define _PARISC_MMZONE_H
6 struct page *adj_node_mem_map;
9 extern struct node_map_data node_data[];
10 extern unsigned char *chunkmap;
12 #define BADCHUNK ((unsigned char)0xff)
13 #define CHUNKSZ (256*1024*1024)
15 #define CHUNKMASK (~(CHUNKSZ - 1))
16 #define CHUNKNUM(paddr) ((paddr) >> CHUNKSHIFT)
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)
22 #define phys_to_page(paddr) \
23 (ADJ_NODE_MEM_MAP(chunkmap[CHUNKNUM((paddr))]) \
24 + ((paddr) >> PAGE_SHIFT))
26 #define virt_to_page(kvaddr) phys_to_page(__pa(kvaddr))
28 /* This is kind of bogus, need to investigate performance of doing it right */
29 #define VALID_PAGE(page) ((page - mem_map) < max_mapnr)
31 #endif /* !_PARISC_MMZONE_H */