projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| ae3c107c AP |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __ASM_GENERIC_NUMA_H | |
| 3 | #define __ASM_GENERIC_NUMA_H | |
| 4 | ||
| 5 | #ifdef CONFIG_NUMA | |
| 6 | ||
| 7 | #define NR_NODE_MEMBLKS (MAX_NUMNODES * 2) | |
| 8 | ||
| 9 | int __node_distance(int from, int to); | |
| 10 | #define node_distance(a, b) __node_distance(a, b) | |
| 11 | ||
| 12 | extern nodemask_t numa_nodes_parsed __initdata; | |
| 13 | ||
| 14 | extern bool numa_off; | |
| 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 | if (node == NUMA_NO_NODE) | |
| 27 | return cpu_all_mask; | |
| 28 | ||
| 29 | return node_to_cpumask_map[node]; | |
| 30 | } | |
| 31 | #endif | |
| 32 | ||
| 33 | void __init arch_numa_init(void); | |
| 34 | int __init numa_add_memblk(int nodeid, u64 start, u64 end); | |
| 35 | void __init numa_set_distance(int from, int to, int distance); | |
| 36 | void __init numa_free_distance(void); | |
| 37 | void __init early_map_cpu_to_node(unsigned int cpu, int nid); | |
| 38 | void numa_store_cpu_info(unsigned int cpu); | |
| 39 | void numa_add_cpu(unsigned int cpu); | |
| 40 | void numa_remove_cpu(unsigned int cpu); | |
| 41 | ||
| 42 | #else /* CONFIG_NUMA */ | |
| 43 | ||
| 44 | static inline void numa_store_cpu_info(unsigned int cpu) { } | |
| 45 | static inline void numa_add_cpu(unsigned int cpu) { } | |
| 46 | static inline void numa_remove_cpu(unsigned int cpu) { } | |
| 47 | static inline void arch_numa_init(void) { } | |
| 48 | static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { } | |
| 49 | ||
| 50 | #endif /* CONFIG_NUMA */ | |
| 51 | ||
| 52 | #endif /* __ASM_GENERIC_NUMA_H */ |