| /* Copyright 2002,2003 by Andi Kleen, SuSE Labs */ |
| /* 2.5 Version loosely based on the NUMAQ Code by Pat Gaughen. */ |
| #ifndef _ASM_X86_64_MMZONE_H |
| #define _ASM_X86_64_MMZONE_H 1 |
| #define VIRTUAL_BUG_ON(x) |
| /* Should really switch to dynamic allocation at some point */ |
| #define NODEMAPSIZE 0x4fff |
| /* Simple perfect hash to map physical addresses to node numbers */ |
| extern struct memnode memnode; |
| #define memnode_shift memnode.shift |
| #define memnodemap memnode.map |
| extern struct pglist_data *node_data[]; |
| static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) |
| VIRTUAL_BUG_ON((addr >> memnode_shift) >= NODEMAPSIZE); |
| nid = memnodemap[addr >> memnode_shift]; |
| VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]); |
| #define NODE_DATA(nid) (node_data[nid]) |
| #define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) |
| #define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \ |
| NODE_DATA(nid)->node_spanned_pages) |
| #ifdef CONFIG_DISCONTIGMEM |
| #define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT) |
| extern int pfn_valid(unsigned long pfn); |