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kernel/linux-rt-4.4.41/arch/s390/include/asm/topology.h 2.45 KB
5113f6f70   김현기   kernel add
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  #ifndef _ASM_S390_TOPOLOGY_H
  #define _ASM_S390_TOPOLOGY_H
  
  #include <linux/cpumask.h>
  #include <asm/numa.h>
  
  struct sysinfo_15_1_x;
  struct cpu;
  
  #ifdef CONFIG_SCHED_BOOK
  
  struct cpu_topology_s390 {
  	unsigned short thread_id;
  	unsigned short core_id;
  	unsigned short socket_id;
  	unsigned short book_id;
  	unsigned short node_id;
  	cpumask_t thread_mask;
  	cpumask_t core_mask;
  	cpumask_t book_mask;
  };
  
  DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
  
  #define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
  #define topology_thread_id(cpu)		  (per_cpu(cpu_topology, cpu).thread_id)
  #define topology_sibling_cpumask(cpu) \
  		(&per_cpu(cpu_topology, cpu).thread_mask)
  #define topology_core_id(cpu)		  (per_cpu(cpu_topology, cpu).core_id)
  #define topology_core_cpumask(cpu)	  (&per_cpu(cpu_topology, cpu).core_mask)
  #define topology_book_id(cpu)		  (per_cpu(cpu_topology, cpu).book_id)
  #define topology_book_cpumask(cpu)	  (&per_cpu(cpu_topology, cpu).book_mask)
  
  #define mc_capable() 1
  
  int topology_cpu_init(struct cpu *);
  int topology_set_cpu_management(int fc);
  void topology_schedule_update(void);
  void store_topology(struct sysinfo_15_1_x *info);
  void topology_expect_change(void);
  const struct cpumask *cpu_coregroup_mask(int cpu);
  
  #else /* CONFIG_SCHED_BOOK */
  
  static inline void topology_schedule_update(void) { }
  static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
  static inline void topology_expect_change(void) { }
  
  #endif /* CONFIG_SCHED_BOOK */
  
  #define POLARIZATION_UNKNOWN	(-1)
  #define POLARIZATION_HRZ	(0)
  #define POLARIZATION_VL		(1)
  #define POLARIZATION_VM		(2)
  #define POLARIZATION_VH		(3)
  
  #define SD_BOOK_INIT	SD_CPU_INIT
  
  #ifdef CONFIG_NUMA
  
  #define cpu_to_node cpu_to_node
  static inline int cpu_to_node(int cpu)
  {
  	return per_cpu(cpu_topology, cpu).node_id;
  }
  
  /* Returns a pointer to the cpumask of CPUs on node 'node'. */
  #define cpumask_of_node cpumask_of_node
  static inline const struct cpumask *cpumask_of_node(int node)
  {
  	return &node_to_cpumask_map[node];
  }
  
  /*
   * Returns the number of the node containing node 'node'. This
   * architecture is flat, so it is a pretty simple function!
   */
  #define parent_node(node) (node)
  
  #define pcibus_to_node(bus) __pcibus_to_node(bus)
  
  #define node_distance(a, b) __node_distance(a, b)
  
  #else /* !CONFIG_NUMA */
  
  #define numa_node_id numa_node_id
  static inline int numa_node_id(void)
  {
  	return 0;
  }
  
  #endif /* CONFIG_NUMA */
  
  #include <asm-generic/topology.h>
  
  #endif /* _ASM_S390_TOPOLOGY_H */