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kernel/linux-rt-4.4.41/arch/arm/include/asm/topology.h 885 Bytes
5113f6f70   김현기   kernel add
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  #ifndef _ASM_ARM_TOPOLOGY_H
  #define _ASM_ARM_TOPOLOGY_H
  
  #ifdef CONFIG_ARM_CPU_TOPOLOGY
  
  #include <linux/cpumask.h>
  
  struct cputopo_arm {
  	int thread_id;
  	int core_id;
  	int socket_id;
  	cpumask_t thread_sibling;
  	cpumask_t core_sibling;
  };
  
  extern struct cputopo_arm cpu_topology[NR_CPUS];
  
  #define topology_physical_package_id(cpu)	(cpu_topology[cpu].socket_id)
  #define topology_core_id(cpu)		(cpu_topology[cpu].core_id)
  #define topology_core_cpumask(cpu)	(&cpu_topology[cpu].core_sibling)
  #define topology_sibling_cpumask(cpu)	(&cpu_topology[cpu].thread_sibling)
  
  void init_cpu_topology(void);
  void store_cpu_topology(unsigned int cpuid);
  const struct cpumask *cpu_coregroup_mask(int cpu);
  
  #else
  
  static inline void init_cpu_topology(void) { }
  static inline void store_cpu_topology(unsigned int cpuid) { }
  
  #endif
  
  #include <asm-generic/topology.h>
  
  #endif /* _ASM_ARM_TOPOLOGY_H */