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 int numa_off;
  17
  18 extern unsigned long numa_free_all_bootmem(void);
  19 extern void setup_node_bootmem(int nodeid, unsigned long start,
  20                                unsigned long end);
  21
  22 #ifdef CONFIG_NUMA
  23 /*
  24  * Too small node sizes may confuse the VM badly. Usually they
  25  * result from BIOS bugs. So dont recognize nodes as standalone
  26  * NUMA entities that have less than this amount of RAM listed:
  27  */
  28 #define NODE_MIN_SIZE (4*1024*1024)
  29
  30 extern int __cpuinit numa_cpu_node(int cpu);
  31
  32 #ifdef CONFIG_NUMA_EMU
  33 #define FAKE_NODE_MIN_SIZE      ((u64)32 << 20)
  34 #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
  35 void numa_emu_cmdline(char *);
  36 #endif /* CONFIG_NUMA_EMU */
  37 #else
  38 static inline int numa_cpu_node(int cpu)                { return NUMA_NO_NODE; }
  39 #endif
  40
  41 #endif /* _ASM_X86_NUMA_64_H */