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 * Determines the node for a given pci bus
38 */
39#define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
40
41void build_cpu_to_node_map(void);
42
43#endif /* CONFIG_NUMA */
44
45#ifdef CONFIG_SMP
46#define topology_physical_package_id(cpu)	(cpu_data(cpu)->socket_id)
47#define topology_core_id(cpu)			(cpu_data(cpu)->core_id)
48#define topology_core_cpumask(cpu)		(&cpu_core_map[cpu])
49#define topology_sibling_cpumask(cpu)		(&per_cpu(cpu_sibling_map, cpu))
50#endif
51
52extern void arch_fix_phys_package_id(int num, u32 slot);
53
54#define cpumask_of_pcibus(bus)	(pcibus_to_node(bus) == -1 ?		\
55				 cpu_all_mask :				\
56				 cpumask_of_node(pcibus_to_node(bus)))
57
58#include <asm-generic/topology.h>
59
60#endif /* _ASM_IA64_TOPOLOGY_H */