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TOMOYO Linux Cross Reference
Linux/arch/ia64/include/asm/topology.h

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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 
 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_sibling_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 */
 68 

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