1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <asm/topology.h>
9 #define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
11 int __node_distance(int from, int to);
12 #define node_distance(a, b) __node_distance(a, b)
14 extern nodemask_t numa_nodes_parsed __initdata;
18 /* Mappings between node number and cpus on that node. */
19 extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
20 void numa_clear_node(unsigned int cpu);
22 #ifdef CONFIG_DEBUG_PER_CPU_MAPS
23 const struct cpumask *cpumask_of_node(int node);
25 /* Returns a pointer to the cpumask of CPUs on Node 'node'. */
26 static inline const struct cpumask *cpumask_of_node(int node)
28 if (node == NUMA_NO_NODE)
31 return node_to_cpumask_map[node];
35 void __init arm64_numa_init(void);
36 int __init numa_add_memblk(int nodeid, u64 start, u64 end);
37 void __init numa_set_distance(int from, int to, int distance);
38 void __init numa_free_distance(void);
39 void __init early_map_cpu_to_node(unsigned int cpu, int nid);
40 void numa_store_cpu_info(unsigned int cpu);
41 void numa_add_cpu(unsigned int cpu);
42 void numa_remove_cpu(unsigned int cpu);
44 #else /* CONFIG_NUMA */
46 static inline void numa_store_cpu_info(unsigned int cpu) { }
47 static inline void numa_add_cpu(unsigned int cpu) { }
48 static inline void numa_remove_cpu(unsigned int cpu) { }
49 static inline void arm64_numa_init(void) { }
50 static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { }
52 #endif /* CONFIG_NUMA */
54 #endif /* __ASM_NUMA_H */