1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __ASM_NUMA_H
3*4882a593Smuzhiyun #define __ASM_NUMA_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <asm/topology.h>
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifdef CONFIG_NUMA
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun int __node_distance(int from, int to);
12*4882a593Smuzhiyun #define node_distance(a, b) __node_distance(a, b)
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun extern nodemask_t numa_nodes_parsed __initdata;
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun extern bool numa_off;
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun /* Mappings between node number and cpus on that node. */
19*4882a593Smuzhiyun extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
20*4882a593Smuzhiyun void numa_clear_node(unsigned int cpu);
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun #ifdef CONFIG_DEBUG_PER_CPU_MAPS
23*4882a593Smuzhiyun const struct cpumask *cpumask_of_node(int node);
24*4882a593Smuzhiyun #else
25*4882a593Smuzhiyun /* Returns a pointer to the cpumask of CPUs on Node 'node'. */
cpumask_of_node(int node)26*4882a593Smuzhiyun static inline const struct cpumask *cpumask_of_node(int node)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun if (node == NUMA_NO_NODE)
29*4882a593Smuzhiyun return cpu_all_mask;
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun return node_to_cpumask_map[node];
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun #endif
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun void __init arm64_numa_init(void);
36*4882a593Smuzhiyun int __init numa_add_memblk(int nodeid, u64 start, u64 end);
37*4882a593Smuzhiyun void __init numa_set_distance(int from, int to, int distance);
38*4882a593Smuzhiyun void __init numa_free_distance(void);
39*4882a593Smuzhiyun void __init early_map_cpu_to_node(unsigned int cpu, int nid);
40*4882a593Smuzhiyun void numa_store_cpu_info(unsigned int cpu);
41*4882a593Smuzhiyun void numa_add_cpu(unsigned int cpu);
42*4882a593Smuzhiyun void numa_remove_cpu(unsigned int cpu);
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun #else /* CONFIG_NUMA */
45*4882a593Smuzhiyun
numa_store_cpu_info(unsigned int cpu)46*4882a593Smuzhiyun static inline void numa_store_cpu_info(unsigned int cpu) { }
numa_add_cpu(unsigned int cpu)47*4882a593Smuzhiyun static inline void numa_add_cpu(unsigned int cpu) { }
numa_remove_cpu(unsigned int cpu)48*4882a593Smuzhiyun static inline void numa_remove_cpu(unsigned int cpu) { }
arm64_numa_init(void)49*4882a593Smuzhiyun static inline void arm64_numa_init(void) { }
early_map_cpu_to_node(unsigned int cpu,int nid)50*4882a593Smuzhiyun static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { }
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun #endif /* CONFIG_NUMA */
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun #endif /* __ASM_NUMA_H */
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