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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * 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
Jack Steiner8d08aed2006-01-17 15:42:46 -060019
20/* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */
21#define PENALTY_FOR_NODE_WITH_CPUS 255
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023/*
Christoph Lametere5ecc192006-04-13 18:23:53 -070024 * Distance above which we begin to use zone reclaim
25 */
26#define RECLAIM_DISTANCE 15
27
28/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 * Returns the number of the node containing CPU 'cpu'
30 */
31#define cpu_to_node(cpu) (int)(cpu_to_node_map[cpu])
32
33/*
34 * Returns a bitmask of CPUs on Node 'node'.
35 */
36#define node_to_cpumask(node) (node_to_cpu_mask[node])
Rusty Russellfbb776c2008-12-26 22:23:40 +103037#define cpumask_of_node(node) (&node_to_cpu_mask[node])
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
39/*
40 * Returns the number of the node containing Node 'nid'.
41 * Not implemented here. Multi-level hierarchies detected with
42 * the help of node_distance().
43 */
44#define parent_node(nid) (nid)
45
46/*
47 * Returns the number of the first CPU on Node 'node'.
48 */
Rusty Russellfbb776c2008-12-26 22:23:40 +103049#define node_to_first_cpu(node) (cpumask_first(cpumask_of_node(node)))
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
Christoph Lameter514604c2005-07-07 16:59:00 -070051/*
52 * Determines the node for a given pci bus
53 */
54#define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
55
Linus Torvalds1da177e2005-04-16 15:20:36 -070056void build_cpu_to_node_map(void);
57
Nick Piggin687f1662005-06-25 14:57:21 -070058#define SD_CPU_INIT (struct sched_domain) { \
Nick Piggin687f1662005-06-25 14:57:21 -070059 .parent = NULL, \
Siddha, Suresh B1a848872006-10-03 01:14:08 -070060 .child = NULL, \
Nick Piggin687f1662005-06-25 14:57:21 -070061 .groups = NULL, \
62 .min_interval = 1, \
63 .max_interval = 4, \
64 .busy_factor = 64, \
65 .imbalance_pct = 125, \
Nick Piggin687f1662005-06-25 14:57:21 -070066 .cache_nice_tries = 2, \
67 .busy_idx = 2, \
68 .idle_idx = 1, \
69 .newidle_idx = 2, \
70 .wake_idx = 1, \
71 .forkexec_idx = 1, \
72 .flags = SD_LOAD_BALANCE \
73 | SD_BALANCE_NEWIDLE \
74 | SD_BALANCE_EXEC \
75 | SD_WAKE_AFFINE, \
76 .last_balance = jiffies, \
77 .balance_interval = 1, \
78 .nr_balance_failed = 0, \
79}
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081/* sched_domains SD_NODE_INIT for IA64 NUMA machines */
82#define SD_NODE_INIT (struct sched_domain) { \
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 .parent = NULL, \
Siddha, Suresh B1a848872006-10-03 01:14:08 -070084 .child = NULL, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070085 .groups = NULL, \
Nick Piggin687f1662005-06-25 14:57:21 -070086 .min_interval = 8, \
Mike Travisc99dbbe2009-01-15 12:09:44 -080087 .max_interval = 8*(min(num_online_cpus(), 32U)), \
Nick Piggin687f1662005-06-25 14:57:21 -070088 .busy_factor = 64, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 .imbalance_pct = 125, \
Nick Piggin687f1662005-06-25 14:57:21 -070090 .cache_nice_tries = 2, \
91 .busy_idx = 3, \
92 .idle_idx = 2, \
Hidetoshi Seto1d3504f2008-04-15 14:04:23 +090093 .newidle_idx = 2, \
Nick Piggin687f1662005-06-25 14:57:21 -070094 .wake_idx = 1, \
95 .forkexec_idx = 1, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 .flags = SD_LOAD_BALANCE \
97 | SD_BALANCE_EXEC \
Nick Piggin687f1662005-06-25 14:57:21 -070098 | SD_BALANCE_FORK \
Christoph Lameter08c183f2006-12-10 02:20:29 -080099 | SD_SERIALIZE \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 | SD_WAKE_BALANCE, \
101 .last_balance = jiffies, \
Nick Piggin687f1662005-06-25 14:57:21 -0700102 .balance_interval = 64, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 .nr_balance_failed = 0, \
104}
105
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106#endif /* CONFIG_NUMA */
107
Zhang, Yanmin69dcc992006-02-03 03:04:36 -0800108#ifdef CONFIG_SMP
109#define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id)
110#define topology_core_id(cpu) (cpu_data(cpu)->core_id)
111#define topology_core_siblings(cpu) (cpu_core_map[cpu])
Mike Travisd5a74302007-10-16 01:24:05 -0700112#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
Rusty Russell333af152009-01-01 10:12:21 +1030113#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
114#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
Siddha, Suresh B5c45bf22006-06-27 02:54:42 -0700115#define smt_capable() (smp_num_siblings > 1)
Zhang, Yanmin69dcc992006-02-03 03:04:36 -0800116#endif
117
Alex Chiangfe086a72008-04-29 15:05:29 -0700118extern void arch_fix_phys_package_id(int num, u32 slot);
119
Mike Travisaa6b5442008-03-31 08:41:55 -0700120#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
121 CPU_MASK_ALL : \
122 node_to_cpumask(pcibus_to_node(bus)) \
123 )
124
Rusty Russellfbb776c2008-12-26 22:23:40 +1030125#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
126 cpu_all_mask : \
Ingo Molnar36c401a2009-01-06 16:19:22 +0100127 cpumask_of_node(pcibus_to_node(bus)))
Rusty Russellfbb776c2008-12-26 22:23:40 +1030128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129#include <asm-generic/topology.h>
130
131#endif /* _ASM_IA64_TOPOLOGY_H */