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