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 #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_IA64_DIG /* DIG systems are small */ 35 # define MAX_PHYSNODE_ID 8 36 # define NR_NODE_MEMBLKS (MAX_NUMNODES * 8) 37 #else /* sn2 is the biggest case, so we use that if !DIG */ 38 # define MAX_PHYSNODE_ID 2048 39 # define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) 40 #endif 41 42 #else /* CONFIG_NUMA */ 43 # define NR_NODE_MEMBLKS (MAX_NUMNODES * 4) 44 #endif /* CONFIG_NUMA */ 45 46 #endif /* _ASM_IA64_MMZONE_H */ 47