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 */ 25 static inline void disable_srat(void) 26 { 27 } 28 static inline int pxm_to_node(int pxm) 29 { 30 return 0; 31 } 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 */ 41 static inline void disable_hmat(void) 42 { 43 } 44 #endif /* CONFIG_ACPI_HMAT */ 45 #endif /* __ACPI_NUMA_H */ 46