1 #ifndef _ASM_X86_AMD_NB_H 2 #define _ASM_X86_AMD_NB_H 3 4 #include <linux/pci.h> 5 6 extern struct pci_device_id amd_nb_misc_ids[]; 7 struct bootnode; 8 9 extern int early_is_amd_nb(u32 value); 10 extern int amd_cache_northbridges(void); 11 extern void amd_flush_garts(void); 12 extern int amd_get_nodes(struct bootnode *nodes); 13 extern int amd_numa_init(unsigned long start_pfn, unsigned long end_pfn); 14 extern int amd_scan_nodes(void); 15 16 struct amd_northbridge { 17 struct pci_dev *misc; 18 }; 19 20 struct amd_northbridge_info { 21 u16 num; 22 u64 flags; 23 struct amd_northbridge *nb; 24 }; 25 extern struct amd_northbridge_info amd_northbridges; 26 27 #define AMD_NB_GART 0x1 28 #define AMD_NB_L3_INDEX_DISABLE 0x2 29 30 #ifdef CONFIG_AMD_NB 31 32 static inline int amd_nb_num(void) 33 { 34 return amd_northbridges.num; 35 } 36 37 static inline int amd_nb_has_feature(int feature) 38 { 39 return ((amd_northbridges.flags & feature) == feature); 40 } 41 42 static inline struct amd_northbridge *node_to_amd_nb(int node) 43 { 44 return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL; 45 } 46 47 #else 48 49 #define amd_nb_num(x) 0 50 #define amd_nb_has_feature(x) false 51 #define node_to_amd_nb(x) NULL 52 53 #endif 54 55 56 #endif /* _ASM_X86_AMD_NB_H */ 57