LXR linux/arch/powerpc/include/asm/mmzone.h

   1/*
   2 * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
   3 *
   4 * PowerPC64 port:
   5 * Copyright (C) 2002 Anton Blanchard, IBM Corp.
   6 */
   7#ifndef _ASM_MMZONE_H_
   8#define _ASM_MMZONE_H_
   9#ifdef __KERNEL__
  10
  11#include <linux/cpumask.h>
  12
  13/*
  14 * generic non-linear memory support:
  15 *
  16 * 1) we will not split memory into more chunks than will fit into the
  17 *    flags field of the struct page
  18 */
  19
  20#ifdef CONFIG_NEED_MULTIPLE_NODES
  21
  22extern struct pglist_data *node_data[];
  23/*
  24 * Return a pointer to the node data for node n.
  25 */
  26#define NODE_DATA(nid)          (node_data[nid])
  27
  28/*
  29 * Following are specific to this numa platform.
  30 */
  31
  32extern int numa_cpu_lookup_table[];
  33extern cpumask_var_t node_to_cpumask_map[];
  34#ifdef CONFIG_MEMORY_HOTPLUG
  35extern unsigned long max_pfn;
  36u64 memory_hotplug_max(void);
  37#else
  38#define memory_hotplug_max() memblock_end_of_DRAM()
  39#endif
  40
  41#else
  42#define memory_hotplug_max() memblock_end_of_DRAM()
  43#endif /* CONFIG_NEED_MULTIPLE_NODES */
  44
  45#endif /* __KERNEL__ */
  46#endif /* _ASM_MMZONE_H_ */
  47