xref: /OK3568_Linux_fs/kernel/include/acpi/acpi_numa.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __ACPI_NUMA_H
3*4882a593Smuzhiyun #define __ACPI_NUMA_H
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #ifdef CONFIG_ACPI_NUMA
6*4882a593Smuzhiyun #include <linux/kernel.h>
7*4882a593Smuzhiyun #include <linux/numa.h>
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun /* Proximity bitmap length */
10*4882a593Smuzhiyun #if MAX_NUMNODES > 256
11*4882a593Smuzhiyun #define MAX_PXM_DOMAINS MAX_NUMNODES
12*4882a593Smuzhiyun #else
13*4882a593Smuzhiyun #define MAX_PXM_DOMAINS (256)	/* Old pxm spec is defined 8 bit */
14*4882a593Smuzhiyun #endif
15*4882a593Smuzhiyun 
16*4882a593Smuzhiyun extern int pxm_to_node(int);
17*4882a593Smuzhiyun extern int node_to_pxm(int);
18*4882a593Smuzhiyun extern int acpi_map_pxm_to_node(int);
19*4882a593Smuzhiyun extern unsigned char acpi_srat_revision;
20*4882a593Smuzhiyun extern void disable_srat(void);
21*4882a593Smuzhiyun 
22*4882a593Smuzhiyun extern void bad_srat(void);
23*4882a593Smuzhiyun extern int srat_disabled(void);
24*4882a593Smuzhiyun 
25*4882a593Smuzhiyun #else				/* CONFIG_ACPI_NUMA */
disable_srat(void)26*4882a593Smuzhiyun static inline void disable_srat(void)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun }
pxm_to_node(int pxm)29*4882a593Smuzhiyun static inline int pxm_to_node(int pxm)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun 	return 0;
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun #endif				/* CONFIG_ACPI_NUMA */
34*4882a593Smuzhiyun 
35*4882a593Smuzhiyun #ifdef CONFIG_ACPI_HMAT
36*4882a593Smuzhiyun extern void disable_hmat(void);
37*4882a593Smuzhiyun #else				/* CONFIG_ACPI_HMAT */
disable_hmat(void)38*4882a593Smuzhiyun static inline void disable_hmat(void)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun #endif				/* CONFIG_ACPI_HMAT */
42*4882a593Smuzhiyun #endif				/* __ACP_NUMA_H */
43