1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (c) 2000,2003 Silicon Graphics, Inc.  All rights reserved.
7 * Copyright (c) 2002 NEC Corp.
8 * Copyright (c) 2002 Erich Focht <efocht@ess.nec.de>
9 * Copyright (c) 2002 Kimio Suganuma <k-suganuma@da.jp.nec.com>
10 */
11#ifndef _ASM_IA64_MMZONE_H
12#define _ASM_IA64_MMZONE_H
13
14#include <linux/numa.h>
15#include <asm/page.h>
16#include <asm/meminit.h>
17
18#ifdef CONFIG_NUMA
19
20static inline int pfn_to_nid(unsigned long pfn)
21{
22#ifdef CONFIG_NUMA
23	extern int paddr_to_nid(unsigned long);
24	int nid = paddr_to_nid(pfn << PAGE_SHIFT);
25	if (nid < 0)
26		return 0;
27	else
28		return nid;
29#else
30	return 0;
31#endif
32}
33
34#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
35extern int early_pfn_to_nid(unsigned long pfn);
36#endif
37
38#ifdef CONFIG_IA64_DIG     /* DIG systems are small */
39# define MAX_PHYSNODE_ID	8
40# define NR_NODE_MEMBLKS	(MAX_NUMNODES * 8)
41#else /* sn2 is the biggest case, so we use that if !DIG */
42# define MAX_PHYSNODE_ID	2048
43# define NR_NODE_MEMBLKS	(MAX_NUMNODES * 4)
44#endif
45
46#else /* CONFIG_NUMA */
47# define NR_NODE_MEMBLKS	(MAX_NUMNODES * 4)
48#endif /* CONFIG_NUMA */
49
50#endif /* _ASM_IA64_MMZONE_H */
51