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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/*
Christoph Lameter514604c2005-07-07 16:59:00 -070047 * Determines the node for a given pci bus
48 */
49#define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051void build_cpu_to_node_map(void);
52
Nick Piggin687f1662005-06-25 14:57:21 -070053#define SD_CPU_INIT (struct sched_domain) { \
Nick Piggin687f1662005-06-25 14:57:21 -070054 .parent = NULL, \
Siddha, Suresh B1a848872006-10-03 01:14:08 -070055 .child = NULL, \
Nick Piggin687f1662005-06-25 14:57:21 -070056 .groups = NULL, \
57 .min_interval = 1, \
58 .max_interval = 4, \
59 .busy_factor = 64, \
60 .imbalance_pct = 125, \
Nick Piggin687f1662005-06-25 14:57:21 -070061 .cache_nice_tries = 2, \
62 .busy_idx = 2, \
63 .idle_idx = 1, \
Mike Galbraith0ec9fab2009-09-15 15:07:03 +020064 .newidle_idx = 0, \
Peter Zijlstra78e7ed52009-09-03 13:16:51 +020065 .wake_idx = 0, \
Nick Piggin687f1662005-06-25 14:57:21 -070066 .forkexec_idx = 1, \
67 .flags = SD_LOAD_BALANCE \
68 | SD_BALANCE_NEWIDLE \
69 | SD_BALANCE_EXEC \
Peter Zijlstra78e7ed52009-09-03 13:16:51 +020070 | SD_BALANCE_FORK \
Peter Zijlstrac88d5912009-09-10 13:50:02 +020071 | SD_BALANCE_WAKE \
Nick Piggin687f1662005-06-25 14:57:21 -070072 | SD_WAKE_AFFINE, \
73 .last_balance = jiffies, \
74 .balance_interval = 1, \
75 .nr_balance_failed = 0, \
76}
77
Linus Torvalds1da177e2005-04-16 15:20:36 -070078/* sched_domains SD_NODE_INIT for IA64 NUMA machines */
79#define SD_NODE_INIT (struct sched_domain) { \
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 .parent = NULL, \
Siddha, Suresh B1a848872006-10-03 01:14:08 -070081 .child = NULL, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 .groups = NULL, \
Nick Piggin687f1662005-06-25 14:57:21 -070083 .min_interval = 8, \
Mike Travisc99dbbe2009-01-15 12:09:44 -080084 .max_interval = 8*(min(num_online_cpus(), 32U)), \
Nick Piggin687f1662005-06-25 14:57:21 -070085 .busy_factor = 64, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 .imbalance_pct = 125, \
Nick Piggin687f1662005-06-25 14:57:21 -070087 .cache_nice_tries = 2, \
88 .busy_idx = 3, \
89 .idle_idx = 2, \
Mike Galbraith0ec9fab2009-09-15 15:07:03 +020090 .newidle_idx = 0, \
Peter Zijlstra78e7ed52009-09-03 13:16:51 +020091 .wake_idx = 0, \
Nick Piggin687f1662005-06-25 14:57:21 -070092 .forkexec_idx = 1, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 .flags = SD_LOAD_BALANCE \
Mike Galbraith0ec9fab2009-09-15 15:07:03 +020094 | SD_BALANCE_NEWIDLE \
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 | SD_BALANCE_EXEC \
Nick Piggin687f1662005-06-25 14:57:21 -070096 | SD_BALANCE_FORK \
Peter Zijlstrac88d5912009-09-10 13:50:02 +020097 | SD_BALANCE_WAKE \
98 | SD_SERIALIZE, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 .last_balance = jiffies, \
Nick Piggin687f1662005-06-25 14:57:21 -0700100 .balance_interval = 64, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 .nr_balance_failed = 0, \
102}
103
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104#endif /* CONFIG_NUMA */
105
Zhang, Yanmin69dcc992006-02-03 03:04:36 -0800106#ifdef CONFIG_SMP
107#define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id)
108#define topology_core_id(cpu) (cpu_data(cpu)->core_id)
109#define topology_core_siblings(cpu) (cpu_core_map[cpu])
Mike Travisd5a74302007-10-16 01:24:05 -0700110#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
Rusty Russell333af152009-01-01 10:12:21 +1030111#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
112#define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu))
Siddha, Suresh B5c45bf22006-06-27 02:54:42 -0700113#define smt_capable() (smp_num_siblings > 1)
Zhang, Yanmin69dcc992006-02-03 03:04:36 -0800114#endif
115
Alex Chiangfe086a72008-04-29 15:05:29 -0700116extern void arch_fix_phys_package_id(int num, u32 slot);
117
Rusty Russellfbb776c2008-12-26 22:23:40 +1030118#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
119 cpu_all_mask : \
Ingo Molnar36c401a2009-01-06 16:19:22 +0100120 cpumask_of_node(pcibus_to_node(bus)))
Rusty Russellfbb776c2008-12-26 22:23:40 +1030121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122#include <asm-generic/topology.h>
123
124#endif /* _ASM_IA64_TOPOLOGY_H */