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 extern int paddr_to_nid(unsigned long); 23 int nid = paddr_to_nid(pfn << PAGE_SHIFT); 24 if (nid < 0) 25 return 0; 26 else 27 return nid; 28} 29 30#ifdef CONFIG_IA64_DIG /* DIG systems are small */ 31# define MAX_PHYSNODE_ID 8 32# define NR_NODE_MEMBLKS (MAX_NUMNODES * 8) 33#else /* sn2 is the biggest case, so we use that if !DIG */ 34# define MAX_PHYSNODE_ID 2048 35# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) 36#endif 37 38#else /* CONFIG_NUMA */ 39# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) 40#endif /* CONFIG_NUMA */ 41 42#endif /* _ASM_IA64_MMZONE_H */ 43