mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
1be7d9935b
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>
53 lines
1.4 KiB
C
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 */
|