| Ganapatrao Kulkarni | 1a2db30 | 2016-04-08 15:50:27 -0700 | [diff] [blame] | 1 | #ifndef __ASM_NUMA_H |
| 2 | #define __ASM_NUMA_H |
| 3 | |
| 4 | #include <asm/topology.h> |
| 5 | |
| 6 | #ifdef CONFIG_NUMA |
| 7 | |
| 8 | /* currently, arm64 implements flat NUMA topology */ |
| 9 | #define parent_node(node) (node) |
| 10 | |
| 11 | int __node_distance(int from, int to); |
| 12 | #define node_distance(a, b) __node_distance(a, b) |
| 13 | |
| 14 | extern nodemask_t numa_nodes_parsed __initdata; |
| 15 | |
| 16 | /* Mappings between node number and cpus on that node. */ |
| 17 | extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; |
| 18 | void numa_clear_node(unsigned int cpu); |
| 19 | |
| 20 | #ifdef CONFIG_DEBUG_PER_CPU_MAPS |
| 21 | const struct cpumask *cpumask_of_node(int node); |
| 22 | #else |
| 23 | /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ |
| 24 | static inline const struct cpumask *cpumask_of_node(int node) |
| 25 | { |
| 26 | return node_to_cpumask_map[node]; |
| 27 | } |
| 28 | #endif |
| 29 | |
| 30 | void __init arm64_numa_init(void); |
| 31 | int __init numa_add_memblk(int nodeid, u64 start, u64 end); |
| 32 | void __init numa_set_distance(int from, int to, int distance); |
| 33 | void __init numa_free_distance(void); |
| 34 | void __init early_map_cpu_to_node(unsigned int cpu, int nid); |
| 35 | void numa_store_cpu_info(unsigned int cpu); |
| 36 | |
| 37 | #else /* CONFIG_NUMA */ |
| 38 | |
| 39 | static inline void numa_store_cpu_info(unsigned int cpu) { } |
| 40 | static inline void arm64_numa_init(void) { } |
| 41 | static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { } |
| 42 | |
| 43 | #endif /* CONFIG_NUMA */ |
| 44 | |
| 45 | #endif /* __ASM_NUMA_H */ |