arch/sh/include/asm/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 #include <linux/numa.h>
   8
   9 extern struct pglist_data *node_data[];
  10 #define NODE_DATA(nid)          (node_data[nid])
  11
  12 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
  13 #define node_end_pfn(nid)       (NODE_DATA(nid)->node_start_pfn + \
  14                                  NODE_DATA(nid)->node_spanned_pages)
  15
  16 static inline int pfn_to_nid(unsigned long pfn)
  17 {
  18         int nid;
  19
  20         for (nid = 0; nid < MAX_NUMNODES; nid++)
  21                 if (pfn >= node_start_pfn(nid) && pfn <= node_end_pfn(nid))
  22                         break;
  23
  24         return nid;
  25 }
  26
  27 static inline struct pglist_data *pfn_to_pgdat(unsigned long pfn)
  28 {
  29         return NODE_DATA(pfn_to_nid(pfn));
  30 }
  31
  32 /* arch/sh/mm/numa.c */
  33 void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end);
  34 #else
  35 static inline void
  36 setup_bootmem_node(int nid, unsigned long start, unsigned long end)
  37 {
  38 }
  39 #endif /* CONFIG_NEED_MULTIPLE_NODES */
  40
  41 /* Platform specific mem init */
  42 void __init plat_mem_setup(void);
  43
  44 /* arch/sh/kernel/setup.c */
  45 void __init setup_bootmem_allocator(unsigned long start_pfn);
  46 void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
  47                                unsigned long end_pfn);
  48
  49 #endif /* __KERNEL__ */
  50 #endif /* __ASM_SH_MMZONE_H */