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Linux/arch/ia64/include/asm/topology.h

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  1 /* SPDX-License-Identifier: GPL-2.0-or-later */
  2 /*
  3  * Copyright (C) 2002, Erich Focht, NEC
  4  *
  5  * All rights reserved.
  6  */
  7 #ifndef _ASM_IA64_TOPOLOGY_H
  8 #define _ASM_IA64_TOPOLOGY_H
  9 
 10 #include <asm/acpi.h>
 11 #include <asm/numa.h>
 12 #include <asm/smp.h>
 13 
 14 #ifdef CONFIG_NUMA
 15 
 16 /* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
 17 #define PENALTY_FOR_NODE_WITH_CPUS 255
 18 
 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 /*
 26  * Returns a bitmask of CPUs on Node 'node'.
 27  */
 28 #define cpumask_of_node(node) ((node) == -1 ?                           \
 29                                cpu_all_mask :                           \
 30                                &node_to_cpu_mask[node])
 31 
 32 /*
 33  * Determines the node for a given pci bus
 34  */
 35 #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
 36 
 37 void build_cpu_to_node_map(void);
 38 
 39 #endif /* CONFIG_NUMA */
 40 
 41 #ifdef CONFIG_SMP
 42 #define topology_physical_package_id(cpu)       (cpu_data(cpu)->socket_id)
 43 #define topology_core_id(cpu)                   (cpu_data(cpu)->core_id)
 44 #define topology_core_cpumask(cpu)              (&cpu_core_map[cpu])
 45 #define topology_sibling_cpumask(cpu)           (&per_cpu(cpu_sibling_map, cpu))
 46 #endif
 47 
 48 extern void arch_fix_phys_package_id(int num, u32 slot);
 49 
 50 #define cpumask_of_pcibus(bus)  (pcibus_to_node(bus) == -1 ?            \
 51                                  cpu_all_mask :                         \
 52                                  cpumask_of_node(pcibus_to_node(bus)))
 53 
 54 #include <asm-generic/topology.h>
 55 
 56 #endif /* _ASM_IA64_TOPOLOGY_H */
 57 

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