arch/s390/numa/numa_mode.h

   1 /*
   2  * NUMA support for s390
   3  *
   4  * Define declarations used for communication between NUMA mode
   5  * implementations and NUMA core functionality.
   6  *
   7  * Copyright IBM Corp. 2015
   8  */
   9 #ifndef __S390_NUMA_MODE_H
  10 #define __S390_NUMA_MODE_H
  11
  12 struct numa_mode {
  13         char *name;                             /* Name of mode */
  14         void (*setup)(void);                    /* Initizalize mode */
  15         void (*update_cpu_topology)(void);      /* Called by topology code */
  16         int (*__pfn_to_nid)(unsigned long pfn); /* PFN to node ID */
  17         unsigned long (*align)(void);           /* Minimum node alignment */
  18         int (*distance)(int a, int b);          /* Distance between two nodes */
  19 };
  20
  21 extern const struct numa_mode numa_mode_plain;
  22 extern const struct numa_mode numa_mode_emu;
  23
  24 #endif /* __S390_NUMA_MODE_H */