/*

 * 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

#ifndef	CONFIG_NUMA

/* 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)	((void)(cpu),0)

#endif

#ifndef parent_node

#define parent_node(node)	((void)(node),0)

#endif

#ifndef node_to_cpumask

#define node_to_cpumask(node)	((void)node, cpu_online_map)

#endif

#ifndef node_to_first_cpu

#define node_to_first_cpu(node)	((void)(node),0)

#endif

#ifndef pcibus_to_node

#define pcibus_to_node(bus)	((void)(bus), -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	/* CONFIG_NUMA */

#ifndef node_to_cpumask_ptr

#define	node_to_cpumask_ptr(v, node) 					\

		cpumask_t _##v = node_to_cpumask(node);			\

		const cpumask_t *v = &_##v

#define node_to_cpumask_ptr_next(v, node)				\

			  _##v = node_to_cpumask(node)

#endif

#endif /* _ASM_GENERIC_TOPOLOGY_H */