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1 | #ifndef __ASM_NUMA_H |
2 | #define __ASM_NUMA_H | |
3 | ||
4 | #include <asm/topology.h> | |
5 | ||
6 | #ifdef CONFIG_NUMA | |
7 | ||
8 | /* currently, arm64 implements flat NUMA topology */ | |
9 | #define parent_node(node) (node) | |
10 | ||
11 | int __node_distance(int from, int to); | |
12 | #define node_distance(a, b) __node_distance(a, b) | |
13 | ||
14 | extern nodemask_t numa_nodes_parsed __initdata; | |
15 | ||
16 | /* Mappings between node number and cpus on that node. */ | |
17 | extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; | |
18 | void numa_clear_node(unsigned int cpu); | |
19 | ||
20 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS | |
21 | const struct cpumask *cpumask_of_node(int node); | |
22 | #else | |
23 | /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ | |
24 | static inline const struct cpumask *cpumask_of_node(int node) | |
25 | { | |
26 | return node_to_cpumask_map[node]; | |
27 | } | |
28 | #endif | |
29 | ||
30 | void __init arm64_numa_init(void); | |
31 | int __init numa_add_memblk(int nodeid, u64 start, u64 end); | |
32 | void __init numa_set_distance(int from, int to, int distance); | |
33 | void __init numa_free_distance(void); | |
34 | void __init early_map_cpu_to_node(unsigned int cpu, int nid); | |
35 | void numa_store_cpu_info(unsigned int cpu); | |
36 | ||
37 | #else /* CONFIG_NUMA */ | |
38 | ||
39 | static inline void numa_store_cpu_info(unsigned int cpu) { } | |
40 | static inline void arm64_numa_init(void) { } | |
41 | static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { } | |
42 | ||
43 | #endif /* CONFIG_NUMA */ | |
44 | ||
45 | #endif /* __ASM_NUMA_H */ |