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/*
* Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
*
* PowerPC64 port:
* Copyright (C) 2002 Anton Blanchard, IBM Corp.
*/
#ifndef _ASM_MMZONE_H_
#define _ASM_MMZONE_H_
#include <linux/config.h>
/*
* generic non-linear memory support:
*
* 1) we will not split memory into more chunks than will fit into the
* flags field of the struct page
*/
#ifdef CONFIG_NEED_MULTIPLE_NODES
extern struct pglist_data *node_data[];
/*
* Return a pointer to the node data for node n.
*/
#define NODE_DATA(nid) (node_data[nid])
/*
* Following are specific to this numa platform.
*/
extern int numa_cpu_lookup_table[];
extern cpumask_t numa_cpumask_lookup_table[];
#ifdef CONFIG_MEMORY_HOTPLUG
extern unsigned long max_pfn;
#endif
/*
* Following are macros that each numa implmentation must define.
*/
#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
#define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn)
#endif /* CONFIG_NEED_MULTIPLE_NODES */
#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
extern int __init early_pfn_to_nid(unsigned long pfn);
#endif
#endif /* _ASM_MMZONE_H_ */
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