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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. | |
5 | * | |
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> | |
10 | */ | |
11 | #ifndef _ASM_IA64_NODEDATA_H | |
12 | #define _ASM_IA64_NODEDATA_H | |
13 | ||
1da177e4 LT |
14 | #include <linux/numa.h> |
15 | ||
16 | #include <asm/percpu.h> | |
17 | #include <asm/mmzone.h> | |
18 | ||
1be7d993 | 19 | #ifdef CONFIG_NUMA |
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20 | |
21 | /* | |
22 | * Node Data. One of these structures is located on each node of a NUMA system. | |
23 | */ | |
24 | ||
25 | struct pglist_data; | |
26 | struct ia64_node_data { | |
27 | short active_cpu_count; | |
28 | short node; | |
29 | struct pglist_data *pg_data_ptrs[MAX_NUMNODES]; | |
30 | }; | |
31 | ||
32 | ||
33 | /* | |
34 | * Return a pointer to the node_data structure for the executing cpu. | |
35 | */ | |
36 | #define local_node_data (local_cpu_data->node_data) | |
37 | ||
38 | /* | |
39 | * Given a node id, return a pointer to the pg_data_t for the node. | |
40 | * | |
41 | * NODE_DATA - should be used in all code not related to system | |
42 | * initialization. It uses pernode data structures to minimize | |
43 | * offnode memory references. However, these structure are not | |
44 | * present during boot. This macro can be used once cpu_init | |
45 | * completes. | |
46 | */ | |
47 | #define NODE_DATA(nid) (local_node_data->pg_data_ptrs[nid]) | |
48 | ||
1be7d993 | 49 | #endif /* CONFIG_NUMA */ |
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50 | |
51 | #endif /* _ASM_IA64_NODEDATA_H */ |