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- #ifndef __ASM_NUMA_H
- #define __ASM_NUMA_H
- #include <asm/topology.h>
- #ifdef CONFIG_NUMA
- #define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
- /* currently, arm64 implements flat NUMA topology */
- #define parent_node(node) (node)
- int __node_distance(int from, int to);
- #define node_distance(a, b) __node_distance(a, b)
- extern nodemask_t numa_nodes_parsed __initdata;
- /* Mappings between node number and cpus on that node. */
- extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
- void numa_clear_node(unsigned int cpu);
- #ifdef CONFIG_DEBUG_PER_CPU_MAPS
- const struct cpumask *cpumask_of_node(int node);
- #else
- /* Returns a pointer to the cpumask of CPUs on Node 'node'. */
- static inline const struct cpumask *cpumask_of_node(int node)
- {
- return node_to_cpumask_map[node];
- }
- #endif
- void __init arm64_numa_init(void);
- int __init numa_add_memblk(int nodeid, u64 start, u64 end);
- void __init numa_set_distance(int from, int to, int distance);
- void __init numa_free_distance(void);
- void __init early_map_cpu_to_node(unsigned int cpu, int nid);
- void numa_store_cpu_info(unsigned int cpu);
- #else /* CONFIG_NUMA */
- static inline void numa_store_cpu_info(unsigned int cpu) { }
- static inline void arm64_numa_init(void) { }
- static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { }
- #endif /* CONFIG_NUMA */
- #endif /* __ASM_NUMA_H */
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