2 * linux/include/asm-ia64/topology.h
4 * Copyright (C) 2002, Erich Focht, NEC
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 #ifndef _ASM_IA64_TOPOLOGY_H
14 #define _ASM_IA64_TOPOLOGY_H
22 * Returns the number of the node containing CPU 'cpu'
24 #define cpu_to_node(cpu) (int)(cpu_to_node_map[cpu])
27 * Returns a bitmask of CPUs on Node 'node'.
29 #define node_to_cpumask(node) (node_to_cpu_mask[node])
32 * Returns the number of the node containing Node 'nid'.
33 * Not implemented here. Multi-level hierarchies detected with
34 * the help of node_distance().
36 #define parent_node(nid) (nid)
39 * Returns the number of the first CPU on Node 'node'.
41 #define node_to_first_cpu(node) (first_cpu(node_to_cpumask(node)))
44 * Determines the node for a given pci bus
46 #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
48 void build_cpu_to_node_map(void);
50 #define SD_CPU_INIT (struct sched_domain) { \
51 .span = CPU_MASK_NONE, \
57 .imbalance_pct = 125, \
58 .per_cpu_gain = 100, \
59 .cache_nice_tries = 2, \
65 .flags = SD_LOAD_BALANCE \
66 | SD_BALANCE_NEWIDLE \
69 .last_balance = jiffies, \
70 .balance_interval = 1, \
71 .nr_balance_failed = 0, \
74 /* sched_domains SD_NODE_INIT for IA64 NUMA machines */
75 #define SD_NODE_INIT (struct sched_domain) { \
76 .span = CPU_MASK_NONE, \
80 .max_interval = 8*(min(num_online_cpus(), 32)), \
82 .imbalance_pct = 125, \
83 .cache_nice_tries = 2, \
86 .newidle_idx = 0, /* unused */ \
89 .per_cpu_gain = 100, \
90 .flags = SD_LOAD_BALANCE \
94 .last_balance = jiffies, \
95 .balance_interval = 64, \
96 .nr_balance_failed = 0, \
99 #endif /* CONFIG_NUMA */
101 #include <asm-generic/topology.h>
103 #endif /* _ASM_IA64_TOPOLOGY_H */