arch/x86/include/asm/numa_64.h

   1 #ifndef _ASM_X86_NUMA_64_H
   2 #define _ASM_X86_NUMA_64_H
   3
   4 #include <linux/nodemask.h>
   5
   6 struct bootnode {
   7         u64 start;
   8         u64 end;
   9 };
  10
  11 extern int compute_hash_shift(struct bootnode *nodes, int numblks,
  12                               int *nodeids);
  13
  14 #define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
  15
  16 extern void numa_init_array(void);
  17 extern int numa_off;
  18
  19 extern unsigned long numa_free_all_bootmem(void);
  20 extern void setup_node_bootmem(int nodeid, unsigned long start,
  21                                unsigned long end);
  22
  23 #ifdef CONFIG_NUMA
  24 /*
  25  * Too small node sizes may confuse the VM badly. Usually they
  26  * result from BIOS bugs. So dont recognize nodes as standalone
  27  * NUMA entities that have less than this amount of RAM listed:
  28  */
  29 #define NODE_MIN_SIZE (4*1024*1024)
  30
  31 extern void __init init_cpu_to_node(void);
  32 extern int __cpuinit numa_cpu_node(int cpu);
  33
  34 #ifdef CONFIG_NUMA_EMU
  35 #define FAKE_NODE_MIN_SIZE      ((u64)32 << 20)
  36 #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
  37 void numa_emu_cmdline(char *);
  38 #endif /* CONFIG_NUMA_EMU */
  39 #else
  40 static inline void init_cpu_to_node(void)               { }
  41 static inline int numa_cpu_node(int cpu)                { return NUMA_NO_NODE; }
  42 #endif
  43
  44 #endif /* _ASM_X86_NUMA_64_H */