arch/ia64/include/asm/topology.h

   1 /*
   2  * Copyright (C) 2002, Erich Focht, NEC
   3  *
   4  * All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11 #ifndef _ASM_IA64_TOPOLOGY_H
  12 #define _ASM_IA64_TOPOLOGY_H
  13
  14 #include <asm/acpi.h>
  15 #include <asm/numa.h>
  16 #include <asm/smp.h>
  17
  18 #ifdef CONFIG_NUMA
  19
  20 /* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
  21 #define PENALTY_FOR_NODE_WITH_CPUS 255
  22
  23 /*
  24  * Nodes within this distance are eligible for reclaim by zone_reclaim() when
  25  * zone_reclaim_mode is enabled.
  26  */
  27 #define RECLAIM_DISTANCE 15
  28
  29 /*
  30  * Returns a bitmask of CPUs on Node 'node'.
  31  */
  32 #define cpumask_of_node(node) ((node) == -1 ?                           \
  33                                cpu_all_mask :                           \
  34                                &node_to_cpu_mask[node])
  35
  36 /*
  37  * Returns the number of the node containing Node 'nid'.
  38  * Not implemented here. Multi-level hierarchies detected with
  39  * the help of node_distance().
  40  */
  41 #define parent_node(nid) (nid)
  42
  43 /*
  44  * Determines the node for a given pci bus
  45  */
  46 #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
  47
  48 void build_cpu_to_node_map(void);
  49
  50 #endif /* CONFIG_NUMA */
  51
  52 #ifdef CONFIG_SMP
  53 #define topology_physical_package_id(cpu)       (cpu_data(cpu)->socket_id)
  54 #define topology_core_id(cpu)                   (cpu_data(cpu)->core_id)
  55 #define topology_core_cpumask(cpu)              (&cpu_core_map[cpu])
  56 #define topology_thread_cpumask(cpu)            (&per_cpu(cpu_sibling_map, cpu))
  57 #endif
  58
  59 extern void arch_fix_phys_package_id(int num, u32 slot);
  60
  61 #define cpumask_of_pcibus(bus)  (pcibus_to_node(bus) == -1 ?            \
  62                                  cpu_all_mask :                         \
  63                                  cpumask_of_node(pcibus_to_node(bus)))
  64
  65 #include <asm-generic/topology.h>
  66
  67 #endif /* _ASM_IA64_TOPOLOGY_H */