48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
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#ifndef __ASM_NUMA_H
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#define __ASM_NUMA_H
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#include <asm/topology.h>
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#ifdef CONFIG_NUMA
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#define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
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/* currently, arm64 implements flat NUMA topology */
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#define parent_node(node) (node)
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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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/* 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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return node_to_cpumask_map[node];
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}
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#endif
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void __init arm64_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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#else /* CONFIG_NUMA */
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static inline void numa_store_cpu_info(unsigned int cpu) { }
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static inline void arm64_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_NUMA_H */
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