acpi_numa.h

 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
15extern int pxm_to_node(int);
16extern int node_to_pxm(int);
17extern int acpi_map_pxm_to_node(int);
18extern unsigned char acpi_srat_revision;
19extern void disable_srat(void);
20extern int fix_pxm_node_maps(int max_nid);
21
22extern void bad_srat(void);
23extern int srat_disabled(void);
24
25#else				/* CONFIG_ACPI_NUMA */
26static inline int fix_pxm_node_maps(int max_nid)
27{
28	return 0;
29}
30static inline void disable_srat(void)
31{
32}
33static inline int pxm_to_node(int pxm)
34{
35	return 0;
36}
37static inline int node_to_pxm(int node)
38{
39	return 0;
40}
41#endif				/* CONFIG_ACPI_NUMA */
42
43#ifdef CONFIG_ACPI_HMAT
44extern void disable_hmat(void);
45#else				/* CONFIG_ACPI_HMAT */
46static inline void disable_hmat(void)
47{
48}
49#endif				/* CONFIG_ACPI_HMAT */
50#endif				/* __ACPI_NUMA_H */