| /* 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 */ |
