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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_GENERIC_NUMA_H #define __ASM_GENERIC_NUMA_H #ifdef CONFIG_NUMA #define NR_NODE_MEMBLKS (MAX_NUMNODES * 2) int __node_distance(int from, int to); #define node_distance(a, b) __node_distance(a, b) extern nodemask_t numa_nodes_parsed __initdata; extern bool numa_off; /* 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) { if (node == NUMA_NO_NODE) return cpu_all_mask; return node_to_cpumask_map[node]; } #endif void __init arch_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); int __init early_cpu_to_node(int cpu); void numa_store_cpu_info(unsigned int cpu); void numa_add_cpu(unsigned int cpu); void numa_remove_cpu(unsigned int cpu); #else /* CONFIG_NUMA */ static inline void numa_store_cpu_info(unsigned int cpu) { } static inline void numa_add_cpu(unsigned int cpu) { } static inline void numa_remove_cpu(unsigned int cpu) { } static inline void arch_numa_init(void) { } static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { } static inline int early_cpu_to_node(int cpu) { return 0; } #endif /* CONFIG_NUMA */ #endif /* __ASM_GENERIC_NUMA_H */