xref: /linux/tools/include/linux/numa.h (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800) 
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_NUMA_H
3 #define _LINUX_NUMA_H
4 
5 
6 #ifdef CONFIG_NODES_SHIFT
7 #define NODES_SHIFT     CONFIG_NODES_SHIFT
8 #else
9 #define NODES_SHIFT     0
10 #endif
11 
12 #define MAX_NUMNODES    (1 << NODES_SHIFT)
13 
14 #define	NUMA_NO_NODE	(-1)
15 
numa_valid_node(int nid)16 static inline bool numa_valid_node(int nid)
17 {
18 	return nid >= 0 && nid < MAX_NUMNODES;
19 }
20 
21 #endif /* _LINUX_NUMA_H */
22