include/asm-sh/mmzone.h

   1 #ifndef __ASM_SH_MMZONE_H
   2 #define __ASM_SH_MMZONE_H
   3
   4 #ifdef __KERNEL__
   5
   6 #ifdef CONFIG_NEED_MULTIPLE_NODES
   7 extern struct pglist_data *node_data[];
   8 #define NODE_DATA(nid)          (node_data[nid])
   9
  10 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
  11 #define node_end_pfn(nid)       (NODE_DATA(nid)->node_start_pfn + \
  12                                  NODE_DATA(nid)->node_spanned_pages)
  13
  14 static inline int pfn_to_nid(unsigned long pfn)
  15 {
  16         int nid;
  17
  18         for (nid = 0; nid < MAX_NUMNODES; nid++)
  19                 if (pfn >= node_start_pfn(nid) && pfn <= node_end_pfn(nid))
  20                         break;
  21
  22         return nid;
  23 }
  24
  25 static inline struct pglist_data *pfn_to_pgdat(unsigned long pfn)
  26 {
  27         return NODE_DATA(pfn_to_nid(pfn));
  28 }
  29
  30 /* arch/sh/mm/numa.c */
  31 void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end);
  32 #else
  33 static inline void
  34 setup_bootmem_node(int nid, unsigned long start, unsigned long end)
  35 {
  36 }
  37 #endif /* CONFIG_NEED_MULTIPLE_NODES */
  38
  39 /* Platform specific mem init */
  40 void __init plat_mem_setup(void);
  41
  42 /* arch/sh/kernel/setup.c */
  43 void __init setup_bootmem_allocator(unsigned long start_pfn);
  44
  45 #endif /* __KERNEL__ */
  46 #endif /* __ASM_SH_MMZONE_H */