#ifndef _ASM_X86_NUMA_H
  #define _ASM_X86_NUMA_H

  #include <linux/nodemask.h>

  #include <asm/topology.h>

  #include <asm/apicdef.h>
  
  #ifdef CONFIG_NUMA

  
  #define NR_NODE_MEMBLKS		(MAX_NUMNODES*2)

  #define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
  
  /*
   * Too small node sizes may confuse the VM badly. Usually they
   * result from BIOS bugs. So dont recognize nodes as standalone
   * NUMA entities that have less than this amount of RAM listed:
   */
  #define NODE_MIN_SIZE (4*1024*1024)
  
  extern int numa_off;

  /*
   * __apicid_to_node[] stores the raw mapping between physical apicid and
   * node and is used to initialize cpu_to_node mapping.
   *
   * The mapping may be overridden by apic->numa_cpu_node() on 32bit and thus
   * should be accessed by the accessors - set_apicid_to_node() and
   * numa_cpu_node().
   */
  extern s16 __apicid_to_node[MAX_LOCAL_APIC];

  extern nodemask_t numa_nodes_parsed __initdata;

  extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
  extern void __init numa_set_distance(int from, int to, int distance);

  static inline void set_apicid_to_node(int apicid, s16 node)
  {
  	__apicid_to_node[apicid] = node;
  }

  
  extern int __cpuinit numa_cpu_node(int cpu);

  #else	/* CONFIG_NUMA */
  static inline void set_apicid_to_node(int apicid, s16 node)
  {
  }

  
  static inline int numa_cpu_node(int cpu)
  {
  	return NUMA_NO_NODE;
  }

  #endif	/* CONFIG_NUMA */

  #ifdef CONFIG_X86_32
  # include "numa_32.h"
  #else
  # include "numa_64.h"
  #endif

  #ifdef CONFIG_NUMA
  extern void __cpuinit numa_set_node(int cpu, int node);
  extern void __cpuinit numa_clear_node(int cpu);

  extern void __init init_cpu_to_node(void);

  extern void __cpuinit numa_add_cpu(int cpu);
  extern void __cpuinit numa_remove_cpu(int cpu);

  #else	/* CONFIG_NUMA */
  static inline void numa_set_node(int cpu, int node)	{ }
  static inline void numa_clear_node(int cpu)		{ }

  static inline void init_cpu_to_node(void)		{ }

  static inline void numa_add_cpu(int cpu)		{ }
  static inline void numa_remove_cpu(int cpu)		{ }

  #endif	/* CONFIG_NUMA */

  #ifdef CONFIG_DEBUG_PER_CPU_MAPS

  void debug_cpumask_set_cpu(int cpu, int node, bool enable);

  #endif

  #ifdef CONFIG_NUMA_EMU
  #define FAKE_NODE_MIN_SIZE	((u64)32 << 20)
  #define FAKE_NODE_MIN_HASH_MASK	(~(FAKE_NODE_MIN_SIZE - 1UL))
  void numa_emu_cmdline(char *);
  #endif /* CONFIG_NUMA_EMU */

  #endif	/* _ASM_X86_NUMA_H */