kernel-ark/include/asm-ia64/nodedata.h
Bob Picco 1be7d9935b [PATCH] V5 ia64 SPARSEMEM - conditional changes for SPARSEMEM
This patch introduces the conditional changes required for the three
memory models.  With [patch 1/4] there are three memory models; FLATMEM,
DISCONTIG and SPARSEMEM.  Also a new arch include file sparemem.h is
introduced for defining SPARSEMEM parameters.

Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-10-04 13:21:13 -07:00

53 lines
1.4 KiB
C

/*
* 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 <efocht@ess.nec.de>
* Copyright (c) 2002 Kimio Suganuma <k-suganuma@da.jp.nec.com>
*/
#ifndef _ASM_IA64_NODEDATA_H
#define _ASM_IA64_NODEDATA_H
#include <linux/config.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])
#endif /* CONFIG_NUMA */
#endif /* _ASM_IA64_NODEDATA_H */