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52 lines
1.5 KiB
52 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_GENERIC_NUMA_H |
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#define __ASM_GENERIC_NUMA_H |
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#ifdef CONFIG_NUMA |
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#define NR_NODE_MEMBLKS (MAX_NUMNODES * 2) |
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int __node_distance(int from, int to); |
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#define node_distance(a, b) __node_distance(a, b) |
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extern nodemask_t numa_nodes_parsed __initdata; |
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extern bool numa_off; |
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/* Mappings between node number and cpus on that node. */ |
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extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
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void numa_clear_node(unsigned int cpu); |
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#ifdef CONFIG_DEBUG_PER_CPU_MAPS |
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const struct cpumask *cpumask_of_node(int node); |
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#else |
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/* Returns a pointer to the cpumask of CPUs on Node 'node'. */ |
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static inline const struct cpumask *cpumask_of_node(int node) |
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{ |
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if (node == NUMA_NO_NODE) |
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return cpu_all_mask; |
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return node_to_cpumask_map[node]; |
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} |
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#endif |
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void __init arch_numa_init(void); |
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int __init numa_add_memblk(int nodeid, u64 start, u64 end); |
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void __init numa_set_distance(int from, int to, int distance); |
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void __init numa_free_distance(void); |
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void __init early_map_cpu_to_node(unsigned int cpu, int nid); |
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void numa_store_cpu_info(unsigned int cpu); |
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void numa_add_cpu(unsigned int cpu); |
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void numa_remove_cpu(unsigned int cpu); |
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#else /* CONFIG_NUMA */ |
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static inline void numa_store_cpu_info(unsigned int cpu) { } |
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static inline void numa_add_cpu(unsigned int cpu) { } |
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static inline void numa_remove_cpu(unsigned int cpu) { } |
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static inline void arch_numa_init(void) { } |
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static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { } |
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#endif /* CONFIG_NUMA */ |
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#endif /* __ASM_GENERIC_NUMA_H */
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