root/arch/sh/include/asm/mmzone.h

INCLUDED FROM

DEFINITIONS

1. pfn_to_nid
2. pfn_to_pgdat
3. setup_bootmem_node

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SH_MMZONE_H
   3 #define __ASM_SH_MMZONE_H
   4 
   5 #ifdef __KERNEL__
   6 
   7 #ifdef CONFIG_NEED_MULTIPLE_NODES
   8 #include <linux/numa.h>
   9 
  10 extern struct pglist_data *node_data[];
  11 #define NODE_DATA(nid)          (node_data[nid])
  12 
  13 static inline int pfn_to_nid(unsigned long pfn)
  14 {
  15         int nid;
  16 
  17         for (nid = 0; nid < MAX_NUMNODES; nid++)
  18                 if (pfn >= node_start_pfn(nid) && pfn <= node_end_pfn(nid))
  19                         break;
  20 
  21         return nid;
  22 }
  23 
  24 static inline struct pglist_data *pfn_to_pgdat(unsigned long pfn)
  25 {
  26         return NODE_DATA(pfn_to_nid(pfn));
  27 }
  28 
  29 /* arch/sh/mm/numa.c */
  30 void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end);
  31 #else
  32 static inline void
  33 setup_bootmem_node(int nid, unsigned long start, unsigned long end)
  34 {
  35 }
  36 #endif /* CONFIG_NEED_MULTIPLE_NODES */
  37 
  38 /* Platform specific mem init */
  39 void __init plat_mem_setup(void);
  40 
  41 /* arch/sh/kernel/setup.c */
  42 void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
  43                                unsigned long end_pfn);
  44 /* arch/sh/mm/init.c */
  45 void __init allocate_pgdat(unsigned int nid);
  46 
  47 #endif /* __KERNEL__ */
  48 #endif /* __ASM_SH_MMZONE_H */