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kernel/linux-rt-4.4.41/arch/ia64/include/asm/mmzone.h 1.1 KB
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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 <efocht@ess.nec.de>
   * Copyright (c) 2002 Kimio Suganuma <k-suganuma@da.jp.nec.com>
   */
  #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 */