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kernel/linux-rt-4.4.41/arch/powerpc/include/asm/topology.h 2.13 KB
5113f6f70   김현기   kernel add
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  #ifndef _ASM_POWERPC_TOPOLOGY_H
  #define _ASM_POWERPC_TOPOLOGY_H
  #ifdef __KERNEL__
  
  
  struct device;
  struct device_node;
  
  #ifdef CONFIG_NUMA
  
  /*
   * If zone_reclaim_mode is enabled, a RECLAIM_DISTANCE of 10 will mean that
   * all zones on all nodes will be eligible for zone_reclaim().
   */
  #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>
  
  #ifdef CONFIG_PPC64
  #include <asm/smp.h>
  
  #define topology_physical_package_id(cpu)	(cpu_to_chip_id(cpu))
  #define topology_sibling_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 */