arch/s390/include/asm/numa.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * NUMA support for s390
   4  *
   5  * Declare the NUMA core code structures and functions.
   6  *
   7  * Copyright IBM Corp. 2015
   8  */
   9
  10 #ifndef _ASM_S390_NUMA_H
  11 #define _ASM_S390_NUMA_H
  12
  13 #ifdef CONFIG_NUMA
  14
  15 #include <linux/numa.h>
  16 #include <linux/cpumask.h>
  17
  18 void numa_setup(void);
  19 int numa_pfn_to_nid(unsigned long pfn);
  20 int __node_distance(int a, int b);
  21 void numa_update_cpu_topology(void);
  22
  23 extern cpumask_t node_to_cpumask_map[MAX_NUMNODES];
  24 extern int numa_debug_enabled;
  25
  26 #else
  27
  28 static inline void numa_setup(void) { }
  29 static inline void numa_update_cpu_topology(void) { }
  30 static inline int numa_pfn_to_nid(unsigned long pfn)
  31 {
  32         return 0;
  33 }
  34
  35 #endif /* CONFIG_NUMA */
  36 #endif /* _ASM_S390_NUMA_H */