1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ACPI_NUMA_H
3 #define __ACPI_NUMA_H
4 
5 #ifdef CONFIG_ACPI_NUMA
6 #include <linux/numa.h>
7 
8 /* Proximity bitmap length */
9 #if MAX_NUMNODES > 256
10 #define MAX_PXM_DOMAINS MAX_NUMNODES
11 #else
12 #define MAX_PXM_DOMAINS (256)	/* Old pxm spec is defined 8 bit */
13 #endif
14 
15 extern int pxm_to_node(int);
16 extern int node_to_pxm(int);
17 extern int acpi_map_pxm_to_node(int);
18 extern unsigned char acpi_srat_revision;
19 extern void disable_srat(void);
20 
21 extern void bad_srat(void);
22 extern int srat_disabled(void);
23 
24 #else				/* CONFIG_ACPI_NUMA */
disable_srat(void)25 static inline void disable_srat(void)
26 {
27 }
pxm_to_node(int pxm)28 static inline int pxm_to_node(int pxm)
29 {
30 	return 0;
31 }
node_to_pxm(int node)32 static inline int node_to_pxm(int node)
33 {
34 	return 0;
35 }
36 #endif				/* CONFIG_ACPI_NUMA */
37 
38 #ifdef CONFIG_ACPI_HMAT
39 extern void disable_hmat(void);
40 #else				/* CONFIG_ACPI_HMAT */
disable_hmat(void)41 static inline void disable_hmat(void)
42 {
43 }
44 #endif				/* CONFIG_ACPI_HMAT */
45 #endif				/* __ACPI_NUMA_H */
46