http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/asm-x86_64/mmzone.h

/* K8 NUMA support */ /* 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 #include <linux/config.h> #ifdef CONFIG_NUMA #define VIRTUAL_BUG_ON(x) #include <asm/smp.h> #define NODEMAPSIZE 0xfff /* Simple perfect hash to map physical addresses to node numbers */ extern int memnode_shift; extern u8 memnodemap[NODEMAPSIZE]; extern struct pglist_data *node_data[]; static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) { unsigned nid; VIRTUAL_BUG_ON((addr >> memnode_shift) >= NODEMAPSIZE); nid = memnodemap[addr >> memnode_shift]; VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]); return 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) #define kvaddr_to_nid(kaddr) phys_to_nid(__pa(kaddr)) extern struct page *pfn_to_page(unsigned long pfn); extern unsigned long page_to_pfn(struct page *page); extern int pfn_valid(unsigned long pfn); #endif #define local_mapnr(kvaddr) \ ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) ) #endif #endif