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- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (c) 2000 Silicon Graphics, Inc. All rights reserved.
- * Copyright (c) 2002 NEC Corp.
- * Copyright (c) 2002 Erich Focht <[email protected]>
- * Copyright (c) 2002 Kimio Suganuma <[email protected]>
- */
- #ifndef _ASM_IA64_NODEDATA_H
- #define _ASM_IA64_NODEDATA_H
- #include <linux/numa.h>
- #include <asm/percpu.h>
- #include <asm/mmzone.h>
- #ifdef CONFIG_NUMA
- /*
- * Node Data. One of these structures is located on each node of a NUMA system.
- */
- struct pglist_data;
- struct ia64_node_data {
- short active_cpu_count;
- short node;
- struct pglist_data *pg_data_ptrs[MAX_NUMNODES];
- };
- /*
- * Return a pointer to the node_data structure for the executing cpu.
- */
- #define local_node_data (local_cpu_data->node_data)
- /*
- * Given a node id, return a pointer to the pg_data_t for the node.
- *
- * NODE_DATA - should be used in all code not related to system
- * initialization. It uses pernode data structures to minimize
- * offnode memory references. However, these structure are not
- * present during boot. This macro can be used once cpu_init
- * completes.
- */
- #define NODE_DATA(nid) (local_node_data->pg_data_ptrs[nid])
- /*
- * LOCAL_DATA_ADDR - This is to calculate the address of other node's
- * "local_node_data" at hot-plug phase. The local_node_data
- * is pointed by per_cpu_page. Kernel usually use it for
- * just executing cpu. However, when new node is hot-added,
- * the addresses of local data for other nodes are necessary
- * to update all of them.
- */
- #define LOCAL_DATA_ADDR(pgdat) \
- ((struct ia64_node_data *)((u64)(pgdat) + \
- L1_CACHE_ALIGN(sizeof(struct pglist_data))))
- #endif /* CONFIG_NUMA */
- #endif /* _ASM_IA64_NODEDATA_H */
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