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/*

 * linux/include/asm-ia64/topology.h

 *

 * Copyright (C) 2002, Erich Focht, NEC

 *

 * 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.

 */

#ifndef _ASM_IA64_TOPOLOGY_H

#define _ASM_IA64_TOPOLOGY_H

#include <asm/acpi.h>

#include <asm/numa.h>

#include <asm/smp.h>

#ifdef CONFIG_NUMA

/*

 * Returns the number of the node containing CPU 'cpu'

 */

#define __cpu_to_node(cpu) (int)(cpu_to_node_map[cpu])

/*

 * Returns a bitmask of CPUs on Node 'node'.

 */

#define __node_to_cpu_mask(node) (node_to_cpu_mask[node])

#else

#define __cpu_to_node(cpu) (0)

#define __node_to_cpumask(node) (&phys_cpu_present_map)

#endif

/*

 * Returns the number of the node containing MemBlk 'memblk'

 */

#ifdef CONFIG_ACPI_NUMA

#define __memblk_to_node(memblk) (node_memblk[memblk].nid)

#else

#define __memblk_to_node(memblk) (memblk)

#endif

/*

 * Returns the number of the node containing Node 'nid'.

 * Not implemented here. Multi-level hierarchies detected with

 * the help of node_distance().

 */

#define __parent_node(nid) (nid)

/*

 * Returns the number of the first CPU on Node 'node'.

 */

#define __node_to_first_cpu(node) (__ffs(__node_to_cpu_mask(node)))

/*

 * Returns the number of the first MemBlk on Node 'node'

 * Should be fixed when IA64 discontigmem goes in.

 */

#define __node_to_memblk(node) (node)

#endif /* _ASM_IA64_TOPOLOGY_H */