mmzone.h
上传用户:jlfgdled
上传日期:2013-04-10
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文件大小:1k
- #ifndef _PARISC_MMZONE_H
- #define _PARISC_MMZONE_H
- struct node_map_data {
- pg_data_t pg_data;
- struct page *adj_node_mem_map;
- };
- extern struct node_map_data node_data[];
- extern unsigned char *chunkmap;
- #define BADCHUNK ((unsigned char)0xff)
- #define CHUNKSZ (256*1024*1024)
- #define CHUNKSHIFT 28
- #define CHUNKMASK (~(CHUNKSZ - 1))
- #define CHUNKNUM(paddr) ((paddr) >> CHUNKSHIFT)
- #define NODE_DATA(nid) (&node_data[nid].pg_data)
- #define NODE_MEM_MAP(nid) (NODE_DATA(nid)->node_mem_map)
- #define ADJ_NODE_MEM_MAP(nid) (node_data[nid].adj_node_mem_map)
- #define phys_to_page(paddr)
- (ADJ_NODE_MEM_MAP(chunkmap[CHUNKNUM((paddr))])
- + ((paddr) >> PAGE_SHIFT))
- #define virt_to_page(kvaddr) phys_to_page(__pa(kvaddr))
- /* This is kind of bogus, need to investigate performance of doing it right */
- #define VALID_PAGE(page) ((page - mem_map) < max_mapnr)
- #endif /* !_PARISC_MMZONE_H */