| #ifndef __ASM_NUMA_H |
| #define __ASM_NUMA_H |
| |
| #include <asm/topology.h> |
| |
| #ifdef CONFIG_NUMA |
| |
| /* 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 */ |
