mmzone.h

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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (c) 2000,2003 Silicon Graphics, Inc.  All rights reserved.
 * Copyright (c) 2002 NEC Corp.
 * Copyright (c) 2002 Erich Focht <[email protected]>
 * Copyright (c) 2002 Kimio Suganuma <[email protected]>
 */
#ifndef _ASM_IA64_MMZONE_H
#define _ASM_IA64_MMZONE_H

#include <linux/numa.h>
#include <asm/page.h>
#include <asm/meminit.h>

#ifdef CONFIG_NUMA

static inline int pfn_to_nid(unsigned long pfn)
{
    extern int paddr_to_nid(unsigned long);
    int nid = paddr_to_nid(pfn << PAGE_SHIFT);
    if (nid < 0)
        return 0;
    else
        return nid;
}

#ifdef CONFIG_IA64_DIG /* DIG systems are small */
# define MAX_PHYSNODE_ID    8
# define NR_NODE_MEMBLKS    (MAX_NUMNODES * 8)
#else /* sn2 is the biggest case, so we use that if !DIG */
# define MAX_PHYSNODE_ID    2048
# define NR_NODE_MEMBLKS    (MAX_NUMNODES * 4)
#endif

#else /* CONFIG_NUMA */
# define NR_NODE_MEMBLKS    (MAX_NUMNODES * 4)
#endif /* CONFIG_NUMA */

#endif /* _ASM_IA64_MMZONE_H */