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s390/numa: add core infrastructure

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Enable core NUMA support for s390 and add one simple default mode "plain"
that creates one single NUMA node.

This patch contains several changes from Michael Holzheu.

Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Philipp Hachtmann
2014-03-06 18:25:13 +01:00
committed by Martin Schwidefsky
parent 199071f108
commit 3a368f742d
15 changed files with 375 additions and 26 deletions
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16
arch/s390/include/asm/mmzone.h Normal file
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@@ -0,0 +1,16 @@
/*
* NUMA support for s390
*
* Copyright IBM Corp. 2015
*/
#ifndef _ASM_S390_MMZONE_H
#define _ASM_S390_MMZONE_H
#ifdef CONFIG_NUMA
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
#endif /* CONFIG_NUMA */
#endif /* _ASM_S390_MMZONE_H */