topology.h
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上传日期:2009-04-28
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- /*
- * linux/include/asm-generic/topology.h
- *
- * Written by: Matthew Dobson, IBM Corporation
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <colpatch@us.ibm.com>
- */
- #ifndef _ASM_GENERIC_TOPOLOGY_H
- #define _ASM_GENERIC_TOPOLOGY_H
- /* Other architectures wishing to use this simple topology API should fill
- in the below functions as appropriate in their own <asm/topology.h> file. */
- #ifndef cpu_to_node
- #define cpu_to_node(cpu) (0)
- #endif
- #ifndef parent_node
- #define parent_node(node) (0)
- #endif
- #ifndef node_to_cpumask
- #define node_to_cpumask(node) (cpu_online_map)
- #endif
- #ifndef node_to_first_cpu
- #define node_to_first_cpu(node) (0)
- #endif
- #ifndef pcibus_to_node
- #define pcibus_to_node(node) (-1)
- #endif
- #ifndef pcibus_to_cpumask
- #define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ?
- CPU_MASK_ALL :
- node_to_cpumask(pcibus_to_node(bus))
- )
- #endif
- #endif /* _ASM_GENERIC_TOPOLOGY_H */