topology.h 1.8 KB

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  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. #include <asm/acpi.h>
  14. #include <asm/numa.h>
  15. #include <asm/smp.h>
  16. #ifdef CONFIG_NUMA
  17. /* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
  18. #define PENALTY_FOR_NODE_WITH_CPUS 255
  19. /*
  20. * Nodes within this distance are eligible for reclaim by zone_reclaim() when
  21. * zone_reclaim_mode is enabled.
  22. */
  23. #define RECLAIM_DISTANCE 15
  24. /*
  25. * Returns a bitmask of CPUs on Node 'node'.
  26. */
  27. #define cpumask_of_node(node) ((node) == -1 ? \
  28. cpu_all_mask : \
  29. &node_to_cpu_mask[node])
  30. /*
  31. * Returns the number of the node containing Node 'nid'.
  32. * Not implemented here. Multi-level hierarchies detected with
  33. * the help of node_distance().
  34. */
  35. #define parent_node(nid) (nid)
  36. /*
  37. * Determines the node for a given pci bus
  38. */
  39. #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
  40. void build_cpu_to_node_map(void);
  41. #endif /* CONFIG_NUMA */
  42. #ifdef CONFIG_SMP
  43. #define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id)
  44. #define topology_core_id(cpu) (cpu_data(cpu)->core_id)
  45. #define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
  46. #define topology_sibling_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
  47. #endif
  48. extern void arch_fix_phys_package_id(int num, u32 slot);
  49. #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
  50. cpu_all_mask : \
  51. cpumask_of_node(pcibus_to_node(bus)))
  52. #include <asm-generic/topology.h>
  53. #endif /* _ASM_IA64_TOPOLOGY_H */