49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
/*
|
|
* 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_
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/cpumask.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 */
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_MMZONE_H_ */
|