1 #ifndef _ASM_POWERPC_TOPOLOGY_H
2 #define _ASM_POWERPC_TOPOLOGY_H
12 * Before going off node we want the VM to try and reclaim from the local
13 * node. It does this if the remote distance is larger than RECLAIM_DISTANCE.
14 * With the default REMOTE_DISTANCE of 20 and the default RECLAIM_DISTANCE of
15 * 20, we never reclaim and go off node straight away.
17 * To fix this we choose a smaller value of RECLAIM_DISTANCE.
19 #define RECLAIM_DISTANCE 10
21 #include <asm/mmzone.h>
23 static inline int cpu_to_node(int cpu)
25 return numa_cpu_lookup_table[cpu];
28 #define parent_node(node) (node)
30 #define cpumask_of_node(node) ((node) == -1 ? \
32 node_to_cpumask_map[node])
36 extern int pcibus_to_node(struct pci_bus *bus);
38 static inline int pcibus_to_node(struct pci_bus *bus)
44 #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
46 cpumask_of_node(pcibus_to_node(bus)))
48 extern int __node_distance(int, int);
49 #define node_distance(a, b) __node_distance(a, b)
51 extern void __init dump_numa_cpu_topology(void);
53 extern int sysfs_add_device_to_node(struct device *dev, int nid);
54 extern void sysfs_remove_device_from_node(struct device *dev, int nid);
58 static inline void dump_numa_cpu_topology(void) {}
60 static inline int sysfs_add_device_to_node(struct device *dev, int nid)
65 static inline void sysfs_remove_device_from_node(struct device *dev,
69 #endif /* CONFIG_NUMA */
71 #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
72 extern int start_topology_update(void);
73 extern int stop_topology_update(void);
74 extern int prrn_is_enabled(void);
76 static inline int start_topology_update(void)
80 static inline int stop_topology_update(void)
84 static inline int prrn_is_enabled(void)
88 #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
90 #include <asm-generic/topology.h>
93 #include <asm/cputable.h>
94 #define smt_capable() (cpu_has_feature(CPU_FTR_SMT))
99 #define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu))
100 #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
101 #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
102 #define topology_core_id(cpu) (cpu_to_core_id(cpu))
106 #endif /* __KERNEL__ */
107 #endif /* _ASM_POWERPC_TOPOLOGY_H */