Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
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 | |
8d08aed8 JS |
19 | |
20 | /* Nodes w/o CPUs are preferred for memory allocations, see build_zonelists */ | |
21 | #define PENALTY_FOR_NODE_WITH_CPUS 255 | |
22 | ||
e5ecc192 CL |
23 | /* |
24 | * Distance above which we begin to use zone reclaim | |
25 | */ | |
26 | #define RECLAIM_DISTANCE 15 | |
27 | ||
1da177e4 LT |
28 | /* |
29 | * 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 | */ | |
1d1e9f04 AB |
36 | #define cpumask_of_node(node) ((node) == -1 ? \ |
37 | cpu_all_mask : \ | |
38 | &node_to_cpu_mask[node]) | |
1da177e4 LT |
39 | |
40 | /* | |
41 | * Returns the number of the node containing Node 'nid'. | |
42 | * Not implemented here. Multi-level hierarchies detected with | |
43 | * the help of node_distance(). | |
44 | */ | |
45 | #define parent_node(nid) (nid) | |
46 | ||
514604c6 CL |
47 | /* |
48 | * Determines the node for a given pci bus | |
49 | */ | |
50 | #define pcibus_to_node(bus) PCI_CONTROLLER(bus)->node | |
51 | ||
1da177e4 LT |
52 | void build_cpu_to_node_map(void); |
53 | ||
687f1661 | 54 | #define SD_CPU_INIT (struct sched_domain) { \ |
687f1661 | 55 | .parent = NULL, \ |
1a848870 | 56 | .child = NULL, \ |
687f1661 NP |
57 | .groups = NULL, \ |
58 | .min_interval = 1, \ | |
59 | .max_interval = 4, \ | |
60 | .busy_factor = 64, \ | |
61 | .imbalance_pct = 125, \ | |
687f1661 NP |
62 | .cache_nice_tries = 2, \ |
63 | .busy_idx = 2, \ | |
64 | .idle_idx = 1, \ | |
0ec9fab3 | 65 | .newidle_idx = 0, \ |
78e7ed53 | 66 | .wake_idx = 0, \ |
b8a543ea | 67 | .forkexec_idx = 0, \ |
687f1661 NP |
68 | .flags = SD_LOAD_BALANCE \ |
69 | | SD_BALANCE_NEWIDLE \ | |
70 | | SD_BALANCE_EXEC \ | |
78e7ed53 | 71 | | SD_BALANCE_FORK \ |
687f1661 NP |
72 | | SD_WAKE_AFFINE, \ |
73 | .last_balance = jiffies, \ | |
74 | .balance_interval = 1, \ | |
75 | .nr_balance_failed = 0, \ | |
76 | } | |
77 | ||
1da177e4 LT |
78 | /* sched_domains SD_NODE_INIT for IA64 NUMA machines */ |
79 | #define SD_NODE_INIT (struct sched_domain) { \ | |
1da177e4 | 80 | .parent = NULL, \ |
1a848870 | 81 | .child = NULL, \ |
1da177e4 | 82 | .groups = NULL, \ |
687f1661 | 83 | .min_interval = 8, \ |
c99dbbe9 | 84 | .max_interval = 8*(min(num_online_cpus(), 32U)), \ |
687f1661 | 85 | .busy_factor = 64, \ |
1da177e4 | 86 | .imbalance_pct = 125, \ |
687f1661 NP |
87 | .cache_nice_tries = 2, \ |
88 | .busy_idx = 3, \ | |
89 | .idle_idx = 2, \ | |
0ec9fab3 | 90 | .newidle_idx = 0, \ |
78e7ed53 | 91 | .wake_idx = 0, \ |
b8a543ea | 92 | .forkexec_idx = 0, \ |
1da177e4 | 93 | .flags = SD_LOAD_BALANCE \ |
0ec9fab3 | 94 | | SD_BALANCE_NEWIDLE \ |
1da177e4 | 95 | | SD_BALANCE_EXEC \ |
687f1661 | 96 | | SD_BALANCE_FORK \ |
c88d5910 | 97 | | SD_SERIALIZE, \ |
1da177e4 | 98 | .last_balance = jiffies, \ |
687f1661 | 99 | .balance_interval = 64, \ |
1da177e4 LT |
100 | .nr_balance_failed = 0, \ |
101 | } | |
102 | ||
1da177e4 LT |
103 | #endif /* CONFIG_NUMA */ |
104 | ||
69dcc991 ZY |
105 | #ifdef CONFIG_SMP |
106 | #define topology_physical_package_id(cpu) (cpu_data(cpu)->socket_id) | |
107 | #define topology_core_id(cpu) (cpu_data(cpu)->core_id) | |
333af153 RR |
108 | #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) |
109 | #define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) | |
5c45bf27 | 110 | #define smt_capable() (smp_num_siblings > 1) |
69dcc991 ZY |
111 | #endif |
112 | ||
fe086a7b AC |
113 | extern void arch_fix_phys_package_id(int num, u32 slot); |
114 | ||
fbb776c3 RR |
115 | #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
116 | cpu_all_mask : \ | |
36c401a4 | 117 | cpumask_of_node(pcibus_to_node(bus))) |
fbb776c3 | 118 | |
1da177e4 LT |
119 | #include <asm-generic/topology.h> |
120 | ||
121 | #endif /* _ASM_IA64_TOPOLOGY_H */ |