| 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 | extern int fix_pxm_node_maps(int max_nid); |
| 21 | |
| 22 | extern void bad_srat(void); |
| 23 | extern int srat_disabled(void); |
| 24 | |
| 25 | #else /* CONFIG_ACPI_NUMA */ |
| 26 | static inline int fix_pxm_node_maps(int max_nid) |
| 27 | { |
| 28 | return 0; |
| 29 | } |
| 30 | static inline void disable_srat(void) |
| 31 | { |
| 32 | } |
| 33 | static inline int pxm_to_node(int pxm) |
| 34 | { |
| 35 | return 0; |
| 36 | } |
| 37 | static inline int node_to_pxm(int node) |
| 38 | { |
| 39 | return 0; |
| 40 | } |
| 41 | #endif /* CONFIG_ACPI_NUMA */ |
| 42 | |
| 43 | #ifdef CONFIG_ACPI_HMAT |
| 44 | extern void disable_hmat(void); |
| 45 | #else /* CONFIG_ACPI_HMAT */ |
| 46 | static inline void disable_hmat(void) |
| 47 | { |
| 48 | } |
| 49 | #endif /* CONFIG_ACPI_HMAT */ |
| 50 | #endif /* __ACPI_NUMA_H */ |
| 51 | |