Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/gregkh/driver...
[linux-2.6/verdex.git] / include / asm-ia64 / nodedata.h
blob6b0f3ed89b7ee8fb5f5d39458c02b8d350f6b55f
1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
6 * Copyright (c) 2000 Silicon Graphics, Inc. All rights reserved.
7 * Copyright (c) 2002 NEC Corp.
8 * Copyright (c) 2002 Erich Focht <efocht@ess.nec.de>
9 * Copyright (c) 2002 Kimio Suganuma <k-suganuma@da.jp.nec.com>
11 #ifndef _ASM_IA64_NODEDATA_H
12 #define _ASM_IA64_NODEDATA_H
14 #include <linux/config.h>
15 #include <linux/numa.h>
17 #include <asm/percpu.h>
18 #include <asm/mmzone.h>
20 #ifdef CONFIG_DISCONTIGMEM
23 * Node Data. One of these structures is located on each node of a NUMA system.
26 struct pglist_data;
27 struct ia64_node_data {
28 short active_cpu_count;
29 short node;
30 struct pglist_data *pg_data_ptrs[MAX_NUMNODES];
35 * Return a pointer to the node_data structure for the executing cpu.
37 #define local_node_data (local_cpu_data->node_data)
40 * Given a node id, return a pointer to the pg_data_t for the node.
42 * NODE_DATA - should be used in all code not related to system
43 * initialization. It uses pernode data structures to minimize
44 * offnode memory references. However, these structure are not
45 * present during boot. This macro can be used once cpu_init
46 * completes.
48 #define NODE_DATA(nid) (local_node_data->pg_data_ptrs[nid])
50 #endif /* CONFIG_DISCONTIGMEM */
52 #endif /* _ASM_IA64_NODEDATA_H */