45 lines
900 B
C
45 lines
900 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_NUMA_H
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#define _LINUX_NUMA_H
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#include <linux/types.h>
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#ifdef CONFIG_NODES_SHIFT
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#define NODES_SHIFT CONFIG_NODES_SHIFT
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#else
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#define NODES_SHIFT 0
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#endif
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#define MAX_NUMNODES (1 << NODES_SHIFT)
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#define NUMA_NO_NODE (-1)
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/* optionally keep NUMA memory info available post init */
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#ifdef CONFIG_NUMA_KEEP_MEMINFO
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#define __initdata_or_meminfo
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#else
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#define __initdata_or_meminfo __initdata
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#endif
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#ifdef CONFIG_NUMA
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/* Generic implementation available */
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int numa_map_to_online_node(int node);
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/*
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* Optional architecture specific implementation, users need a "depends
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* on $ARCH"
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*/
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int phys_to_target_node(phys_addr_t addr);
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#else
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static inline int numa_map_to_online_node(int node)
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{
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return NUMA_NO_NODE;
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}
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static inline int phys_to_target_node(phys_addr_t addr)
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{
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return NUMA_NO_NODE;
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}
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#endif
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#endif /* _LINUX_NUMA_H */
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