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 #define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
  12
  13 extern int numa_off;
  14
  15 extern unsigned long numa_free_all_bootmem(void);
  16 extern void setup_node_bootmem(int nodeid, unsigned long start,
  17                                unsigned long end);
  18
  19 #ifdef CONFIG_NUMA
  20 /*
  21  * Too small node sizes may confuse the VM badly. Usually they
  22  * result from BIOS bugs. So dont recognize nodes as standalone
  23  * NUMA entities that have less than this amount of RAM listed:
  24  */
  25 #define NODE_MIN_SIZE (4*1024*1024)
  26
  27 extern nodemask_t numa_nodes_parsed __initdata;
  28
  29 extern int __cpuinit numa_cpu_node(int cpu);
  30 extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
  31 extern void __init numa_set_distance(int from, int to, int distance);
  32
  33 #ifdef CONFIG_NUMA_EMU
  34 #define FAKE_NODE_MIN_SIZE      ((u64)32 << 20)
  35 #define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
  36 void numa_emu_cmdline(char *);
  37 #endif /* CONFIG_NUMA_EMU */
  38 #else
  39 static inline int numa_cpu_node(int cpu)                { return NUMA_NO_NODE; }
  40 #endif
  41
  42 #endif /* _ASM_X86_NUMA_64_H */