| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 14 | #include <linux/config.h> |
| 15 | #include <linux/numa.h> |
| 16 | |
| 17 | #include <asm/percpu.h> |
| 18 | #include <asm/mmzone.h> |
| 19 | |
| 20 | #ifdef CONFIG_DISCONTIGMEM |
| 21 | |
| 22 | /* |
| 23 | * Node Data. One of these structures is located on each node of a NUMA system. |
| 24 | */ |
| 25 | |
| 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]; |
| 31 | }; |
| 32 | |
| 33 | |
| 34 | /* |
| 35 | * Return a pointer to the node_data structure for the executing cpu. |
| 36 | */ |
| 37 | #define local_node_data (local_cpu_data->node_data) |
| 38 | |
| 39 | /* |
| 40 | * Given a node id, return a pointer to the pg_data_t for the node. |
| 41 | * |
| 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. |
| 47 | */ |
| 48 | #define NODE_DATA(nid) (local_node_data->pg_data_ptrs[nid]) |
| 49 | |
| 50 | #endif /* CONFIG_DISCONTIGMEM */ |
| 51 | |
| 52 | #endif /* _ASM_IA64_NODEDATA_H */ |