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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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/* Other architectures wishing to use this simple topology API should fill
31 in the below functions as appropriate in their own <asm/topology.h> file. */
32#ifndef cpu_to_node
33#define cpu_to_node(cpu) (0)
34#endif
35#ifndef parent_node
36#define parent_node(node) (0)
37#endif
38#ifndef node_to_cpumask
39#define node_to_cpumask(node) (cpu_online_map)
40#endif
41#ifndef node_to_first_cpu
42#define node_to_first_cpu(node) (0)
43#endif
Christoph Lameter8c5a0902005-06-23 00:08:18 -070044#ifndef pcibus_to_node
45#define pcibus_to_node(node) (-1)
46#endif
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048#ifndef pcibus_to_cpumask
Christoph Lameter8c5a0902005-06-23 00:08:18 -070049#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
50 CPU_MASK_ALL : \
51 node_to_cpumask(pcibus_to_node(bus)) \
52 )
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#endif
54
55#endif /* _ASM_GENERIC_TOPOLOGY_H */