1 #ifndef _ASM_POWERPC_TOPOLOGY_H 2 #define _ASM_POWERPC_TOPOLOGY_H 3 #ifdef __KERNEL__ 4 5 6 struct device; 7 struct device_node; 8 9 #ifdef CONFIG_NUMA 10 11 /* 12 * If zone_reclaim_mode is enabled, a RECLAIM_DISTANCE of 10 will mean that 13 * all zones on all nodes will be eligible for zone_reclaim(). 14 */ 15 #define RECLAIM_DISTANCE 10 16 17 #include <asm/mmzone.h> 18 19 #define parent_node(node) (node) 20 21 #define cpumask_of_node(node) ((node) == -1 ? \ 22 cpu_all_mask : \ 23 node_to_cpumask_map[node]) 24 25 struct pci_bus; 26 #ifdef CONFIG_PCI 27 extern int pcibus_to_node(struct pci_bus *bus); 28 #else 29 static inline int pcibus_to_node(struct pci_bus *bus) 30 { 31 return -1; 32 } 33 #endif 34 35 #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ 36 cpu_all_mask : \ 37 cpumask_of_node(pcibus_to_node(bus))) 38 39 extern int __node_distance(int, int); 40 #define node_distance(a, b) __node_distance(a, b) 41 42 extern void __init dump_numa_cpu_topology(void); 43 44 extern int sysfs_add_device_to_node(struct device *dev, int nid); 45 extern void sysfs_remove_device_from_node(struct device *dev, int nid); 46 47 #else 48 49 static inline void dump_numa_cpu_topology(void) {} 50 51 static inline int sysfs_add_device_to_node(struct device *dev, int nid) 52 { 53 return 0; 54 } 55 56 static inline void sysfs_remove_device_from_node(struct device *dev, 57 int nid) 58 { 59 } 60 #endif /* CONFIG_NUMA */ 61 62 #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR) 63 extern int start_topology_update(void); 64 extern int stop_topology_update(void); 65 extern int prrn_is_enabled(void); 66 #else 67 static inline int start_topology_update(void) 68 { 69 return 0; 70 } 71 static inline int stop_topology_update(void) 72 { 73 return 0; 74 } 75 static inline int prrn_is_enabled(void) 76 { 77 return 0; 78 } 79 #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */ 80 81 #include <asm-generic/topology.h> 82 83 #ifdef CONFIG_SMP 84 #include <asm/cputable.h> 85 86 #ifdef CONFIG_PPC64 87 #include <asm/smp.h> 88 89 #define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu)) 90 #define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) 91 #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) 92 #define topology_core_id(cpu) (cpu_to_core_id(cpu)) 93 #endif 94 #endif 95 96 #endif /* __KERNEL__ */ 97 #endif /* _ASM_POWERPC_TOPOLOGY_H */ 98