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 20 static 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