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kernel/linux-rt-4.4.41/arch/ia64/include/asm/topology.h 1.76 KB
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  /*
   * Copyright (C) 2002, Erich Focht, NEC
   *
   * All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   */
  #ifndef _ASM_IA64_TOPOLOGY_H
  #define _ASM_IA64_TOPOLOGY_H
  
  #include <asm/acpi.h>
  #include <asm/numa.h>
  #include <asm/smp.h>
  
  #ifdef CONFIG_NUMA
  
  /* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
  #define PENALTY_FOR_NODE_WITH_CPUS 255
  
  /*
   * Nodes within this distance are eligible for reclaim by zone_reclaim() when
   * zone_reclaim_mode is enabled.
   */
  #define RECLAIM_DISTANCE 15
  
  /*
   * Returns a bitmask of CPUs on Node 'node'.
   */
  #define cpumask_of_node(node) ((node) == -1 ?				\
  			       cpu_all_mask :				\
  			       &node_to_cpu_mask[node])
  
  /*
   * Returns the number of the node containing Node 'nid'.
   * Not implemented here. Multi-level hierarchies detected with
   * the help of node_distance().
   */
  #define parent_node(nid) (nid)
  
  /*
   * Determines the node for a given pci bus
   */
  #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
  
  void build_cpu_to_node_map(void);
  
  #endif /* CONFIG_NUMA */
  
  #ifdef CONFIG_SMP
  #define topology_physical_package_id(cpu)	(cpu_data(cpu)->socket_id)
  #define topology_core_id(cpu)			(cpu_data(cpu)->core_id)
  #define topology_core_cpumask(cpu)		(&cpu_core_map[cpu])
  #define topology_sibling_cpumask(cpu)		(&per_cpu(cpu_sibling_map, cpu))
  #endif
  
  extern void arch_fix_phys_package_id(int num, u32 slot);
  
  #define cpumask_of_pcibus(bus)	(pcibus_to_node(bus) == -1 ?		\
  				 cpu_all_mask :				\
  				 cpumask_of_node(pcibus_to_node(bus)))
  
  #include <asm-generic/topology.h>
  
  #endif /* _ASM_IA64_TOPOLOGY_H */