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