| /* 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 early_map_cpu_to_node(unsigned int cpu, int nid); |
| int 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 */ |
| |
| #ifdef CONFIG_NUMA_EMU |
| void debug_cpumask_set_cpu(unsigned int cpu, int node, bool enable); |
| #endif |
| |
| #endif /* __ASM_GENERIC_NUMA_H */ |
