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 */ 37