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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_X86_NUMA_H #define _ASM_X86_NUMA_H #include <linux/nodemask.h> #include <linux/errno.h> #include <asm/topology.h> #include <asm/apicdef.h> #ifdef CONFIG_NUMA extern int numa_off; /* * __apicid_to_node[] stores the raw mapping between physical apicid and * node and is used to initialize cpu_to_node mapping. * * The mapping may be overridden by apic->numa_cpu_node() on 32bit and thus * should be accessed by the accessors - set_apicid_to_node() and * numa_cpu_node(). */ extern s16 __apicid_to_node[MAX_LOCAL_APIC]; extern nodemask_t numa_nodes_parsed __initdata; static inline void set_apicid_to_node(int apicid, s16 node) { __apicid_to_node[apicid] = node; } extern int numa_cpu_node(int cpu); #else /* CONFIG_NUMA */ static inline void set_apicid_to_node(int apicid, s16 node) { } static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; } #endif /* CONFIG_NUMA */ #ifdef CONFIG_X86_32 # include <asm/numa_32.h> #endif #ifdef CONFIG_NUMA extern void numa_set_node(int cpu, int node); extern void numa_clear_node(int cpu); extern void __init init_cpu_to_node(void); extern void numa_add_cpu(unsigned int cpu); extern void numa_remove_cpu(unsigned int cpu); extern void init_gi_nodes(void); #else /* CONFIG_NUMA */ static inline void numa_set_node(int cpu, int node) { } static inline void numa_clear_node(int cpu) { } static inline void init_cpu_to_node(void) { } static inline void numa_add_cpu(unsigned int cpu) { } static inline void numa_remove_cpu(unsigned int cpu) { } static inline void init_gi_nodes(void) { } #endif /* CONFIG_NUMA */ #ifdef CONFIG_DEBUG_PER_CPU_MAPS void debug_cpumask_set_cpu(unsigned int cpu, int node, bool enable); #endif #endif /* _ASM_X86_NUMA_H */