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kernel/linux-rt-4.4.41/arch/alpha/include/asm/topology.h 918 Bytes
5113f6f70   김현기   kernel add
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  #ifndef _ASM_ALPHA_TOPOLOGY_H
  #define _ASM_ALPHA_TOPOLOGY_H
  
  #include <linux/smp.h>
  #include <linux/threads.h>
  #include <asm/machvec.h>
  
  #ifdef CONFIG_NUMA
  static inline int cpu_to_node(int cpu)
  {
  	int node;
  	
  	if (!alpha_mv.cpuid_to_nid)
  		return 0;
  
  	node = alpha_mv.cpuid_to_nid(cpu);
  
  #ifdef DEBUG_NUMA
  	BUG_ON(node < 0);
  #endif
  
  	return node;
  }
  
  extern struct cpumask node_to_cpumask_map[];
  /* FIXME: This is dumb, recalculating every time.  But simple. */
  static const struct cpumask *cpumask_of_node(int node)
  {
  	int cpu;
  
  	if (node == -1)
  		return cpu_all_mask;
  
  	cpumask_clear(&node_to_cpumask_map[node]);
  
  	for_each_online_cpu(cpu) {
  		if (cpu_to_node(cpu) == node)
  			cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
  	}
  
  	return &node_to_cpumask_map[node];
  }
  
  #define cpumask_of_pcibus(bus)	(cpu_online_mask)
  
  #endif /* !CONFIG_NUMA */
  # include <asm-generic/topology.h>
  
  #endif /* _ASM_ALPHA_TOPOLOGY_H */