Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_NUMA_H
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#define _ASM_X86_NUMA_H
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#include <linux/nodemask.h>
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#include <linux/errno.h>
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#include <asm/topology.h>
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#include <asm/apicdef.h>
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#ifdef CONFIG_NUMA
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extern int numa_off;
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/*
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* __apicid_to_node[] stores the raw mapping between physical apicid and
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* node and is used to initialize cpu_to_node mapping.
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*
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* The mapping may be overridden by apic->numa_cpu_node() on 32bit and thus
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* should be accessed by the accessors - set_apicid_to_node() and
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* numa_cpu_node().
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*/
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extern s16 __apicid_to_node[MAX_LOCAL_APIC];
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extern nodemask_t numa_nodes_parsed __initdata;
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static inline void set_apicid_to_node(int apicid, s16 node)
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{
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__apicid_to_node[apicid] = node;
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}
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extern int numa_cpu_node(int cpu);
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#else /* CONFIG_NUMA */
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static inline void set_apicid_to_node(int apicid, s16 node)
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{
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}
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static inline int numa_cpu_node(int cpu)
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{
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return NUMA_NO_NODE;
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}
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#endif /* CONFIG_NUMA */
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#ifdef CONFIG_NUMA
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extern void numa_set_node(int cpu, int node);
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extern void numa_clear_node(int cpu);
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extern void __init init_cpu_to_node(void);
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extern void numa_add_cpu(unsigned int cpu);
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extern void numa_remove_cpu(unsigned int cpu);
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extern void init_gi_nodes(void);
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#else /* CONFIG_NUMA */
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static inline void numa_set_node(int cpu, int node) { }
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static inline void numa_clear_node(int cpu) { }
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static inline void init_cpu_to_node(void) { }
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static inline void numa_add_cpu(unsigned int cpu) { }
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static inline void numa_remove_cpu(unsigned int cpu) { }
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static inline void init_gi_nodes(void) { }
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#endif /* CONFIG_NUMA */
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#ifdef CONFIG_DEBUG_PER_CPU_MAPS
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void debug_cpumask_set_cpu(unsigned int cpu, int node, bool enable);
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#endif
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#endif /* _ASM_X86_NUMA_H */
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