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#ifndef _ASM_POWERPC_TOPOLOGY_H #define _ASM_POWERPC_TOPOLOGY_H #ifdef __KERNEL__ struct device; struct device_node; #ifdef CONFIG_NUMA /* * Before going off node we want the VM to try and reclaim from the local * node. It does this if the remote distance is larger than RECLAIM_DISTANCE. * With the default REMOTE_DISTANCE of 20 and the default RECLAIM_DISTANCE of * 20, we never reclaim and go off node straight away. * * To fix this we choose a smaller value of RECLAIM_DISTANCE. */ #define RECLAIM_DISTANCE 10 #include <asm/mmzone.h> #define parent_node(node) (node) #define cpumask_of_node(node) ((node) == -1 ? \ cpu_all_mask : \ node_to_cpumask_map[node]) struct pci_bus; #ifdef CONFIG_PCI extern int pcibus_to_node(struct pci_bus *bus); #else static inline int pcibus_to_node(struct pci_bus *bus) { return -1; } #endif #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ cpu_all_mask : \ cpumask_of_node(pcibus_to_node(bus))) extern int __node_distance(int, int); #define node_distance(a, b) __node_distance(a, b) extern void __init dump_numa_cpu_topology(void); extern int sysfs_add_device_to_node(struct device *dev, int nid); extern void sysfs_remove_device_from_node(struct device *dev, int nid); #else static inline void dump_numa_cpu_topology(void) {} static inline int sysfs_add_device_to_node(struct device *dev, int nid) { return 0; } static inline void sysfs_remove_device_from_node(struct device *dev, int nid) { } #endif /* CONFIG_NUMA */ #if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR) extern int start_topology_update(void); extern int stop_topology_update(void); extern int prrn_is_enabled(void); #else static inline int start_topology_update(void) { return 0; } static inline int stop_topology_update(void) { return 0; } static inline int prrn_is_enabled(void) { return 0; } #endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */ #include <asm-generic/topology.h> #ifdef CONFIG_SMP #include <asm/cputable.h> #define smt_capable() (cpu_has_feature(CPU_FTR_SMT)) #ifdef CONFIG_PPC64 #include <asm/smp.h> #define topology_physical_package_id(cpu) (cpu_to_chip_id(cpu)) #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) #define topology_core_id(cpu) (cpu_to_core_id(cpu)) #endif #endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_TOPOLOGY_H */