arch/x86/include/asm/numa.h

   1 #ifndef _ASM_X86_NUMA_H
   2 #define _ASM_X86_NUMA_H
   3
   4 #include <asm/topology.h>
   5 #include <asm/apicdef.h>
   6
   7 #ifdef CONFIG_NUMA
   8
   9 #define NR_NODE_MEMBLKS         (MAX_NUMNODES*2)
  10
  11 /*
  12  * __apicid_to_node[] stores the raw mapping between physical apicid and
  13  * node and is used to initialize cpu_to_node mapping.
  14  *
  15  * The mapping may be overridden by apic->numa_cpu_node() on 32bit and thus
  16  * should be accessed by the accessors - set_apicid_to_node() and
  17  * numa_cpu_node().
  18  */
  19 extern s16 __apicid_to_node[MAX_LOCAL_APIC];
  20
  21 static inline void set_apicid_to_node(int apicid, s16 node)
  22 {
  23         __apicid_to_node[apicid] = node;
  24 }
  25 #else   /* CONFIG_NUMA */
  26 static inline void set_apicid_to_node(int apicid, s16 node)
  27 {
  28 }
  29 #endif  /* CONFIG_NUMA */
  30
  31 #ifdef CONFIG_X86_32
  32 # include "numa_32.h"
  33 #else
  34 # include "numa_64.h"
  35 #endif
  36
  37 #ifdef CONFIG_NUMA
  38 extern void __cpuinit numa_set_node(int cpu, int node);
  39 extern void __cpuinit numa_clear_node(int cpu);
  40 extern void __init numa_init_array(void);
  41 extern void __init init_cpu_to_node(void);
  42 extern void __cpuinit numa_add_cpu(int cpu);
  43 extern void __cpuinit numa_remove_cpu(int cpu);
  44 #else   /* CONFIG_NUMA */
  45 static inline void numa_set_node(int cpu, int node)     { }
  46 static inline void numa_clear_node(int cpu)             { }
  47 static inline void numa_init_array(void)                { }
  48 static inline void init_cpu_to_node(void)               { }
  49 static inline void numa_add_cpu(int cpu)                { }
  50 static inline void numa_remove_cpu(int cpu)             { }
  51 #endif  /* CONFIG_NUMA */
  52
  53 #ifdef CONFIG_DEBUG_PER_CPU_MAPS
  54 struct cpumask __cpuinit *debug_cpumask_set_cpu(int cpu, int enable);
  55 #endif
  56
  57 #endif  /* _ASM_X86_NUMA_H */