1 | /* |
2 | * linux/include/asm-generic/topology.h |
3 | * |
4 | * Written by: Matthew Dobson, IBM Corporation |
5 | * |
6 | * Copyright (C) 2002, IBM Corp. |
7 | * |
8 | * All rights reserved. |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify |
11 | * it under the terms of the GNU General Public License as published by |
12 | * the Free Software Foundation; either version 2 of the License, or |
13 | * (at your option) any later version. |
14 | * |
15 | * This program is distributed in the hope that it will be useful, but |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
18 | * NON INFRINGEMENT. See the GNU General Public License for more |
19 | * details. |
20 | * |
21 | * You should have received a copy of the GNU General Public License |
22 | * along with this program; if not, write to the Free Software |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
24 | * |
25 | * Send feedback to <colpatch@us.ibm.com> |
26 | */ |
27 | #ifndef _ASM_GENERIC_TOPOLOGY_H |
28 | #define _ASM_GENERIC_TOPOLOGY_H |
29 | |
30 | #ifndef CONFIG_NUMA |
31 | |
32 | /* Other architectures wishing to use this simple topology API should fill |
33 | in the below functions as appropriate in their own <asm/topology.h> file. */ |
34 | #ifndef cpu_to_node |
35 | #define cpu_to_node(cpu) ((void)(cpu),0) |
36 | #endif |
37 | #ifndef set_numa_node |
38 | #define set_numa_node(node) |
39 | #endif |
40 | #ifndef set_cpu_numa_node |
41 | #define set_cpu_numa_node(cpu, node) |
42 | #endif |
43 | #ifndef cpu_to_mem |
44 | #define cpu_to_mem(cpu) ((void)(cpu),0) |
45 | #endif |
46 | |
47 | #ifndef cpumask_of_node |
48 | #ifdef CONFIG_NUMA |
49 | #define cpumask_of_node(node) ((node) == 0 ? cpu_online_mask : cpu_none_mask) |
50 | #else |
51 | #define cpumask_of_node(node) ((void)(node), cpu_online_mask) |
52 | #endif |
53 | #endif |
54 | #ifndef pcibus_to_node |
55 | #define pcibus_to_node(bus) ((void)(bus), -1) |
56 | #endif |
57 | |
58 | #ifndef cpumask_of_pcibus |
59 | #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
60 | cpu_all_mask : \ |
61 | cpumask_of_node(pcibus_to_node(bus))) |
62 | #endif |
63 | |
64 | #endif /* CONFIG_NUMA */ |
65 | |
66 | #if !defined(CONFIG_NUMA) || !defined(CONFIG_HAVE_MEMORYLESS_NODES) |
67 | |
68 | #ifndef set_numa_mem |
69 | #define set_numa_mem(node) |
70 | #endif |
71 | #ifndef set_cpu_numa_mem |
72 | #define set_cpu_numa_mem(cpu, node) |
73 | #endif |
74 | |
75 | #endif /* !CONFIG_NUMA || !CONFIG_HAVE_MEMORYLESS_NODES */ |
76 | |
77 | #endif /* _ASM_GENERIC_TOPOLOGY_H */ |
78 | |