2 * linux/include/asm-generic/topology.h
4 * Written by: Matthew Dobson, IBM Corporation
6 * Copyright (C) 2002, IBM Corp.
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.
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
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.
25 * Send feedback to <colpatch@us.ibm.com>
27 #ifndef _ASM_GENERIC_TOPOLOGY_H
28 #define _ASM_GENERIC_TOPOLOGY_H
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. */
35 #define cpu_to_node(cpu) ((void)(cpu),0)
38 #define set_numa_node(node)
40 #ifndef set_cpu_numa_node
41 #define set_cpu_numa_node(cpu, node)
44 #define cpu_to_mem(cpu) ((void)(cpu),0)
48 #define parent_node(node) ((void)(node),0)
50 #ifndef cpumask_of_node
51 #define cpumask_of_node(node) ((void)node, cpu_online_mask)
53 #ifndef pcibus_to_node
54 #define pcibus_to_node(bus) ((void)(bus), -1)
57 #ifndef cpumask_of_pcibus
58 #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
60 cpumask_of_node(pcibus_to_node(bus)))
63 #endif /* CONFIG_NUMA */
65 #if !defined(CONFIG_NUMA) || !defined(CONFIG_HAVE_MEMORYLESS_NODES)
68 #define set_numa_mem(node)
70 #ifndef set_cpu_numa_mem
71 #define set_cpu_numa_mem(cpu, node)
74 #endif /* !CONFIG_NUMA || !CONFIG_HAVE_MEMORYLESS_NODES */
76 #endif /* _ASM_GENERIC_TOPOLOGY_H */
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