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 48void 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 59extern 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