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arm64, numa: Add NUMA support for arm64 platforms.

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Attempt to get the memory and CPU NUMA node via of_numa.  If that
fails, default the dummy NUMA node and map all memory and CPUs to node
0.

Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Ganapatrao Kulkarni
2016-04-08 15:50:27 -07:00
committed by Will Deacon
parent 3194ac6e66
commit 1a2db30034
10 changed files with 538 additions and 5 deletions
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12
arch/arm64/include/asm/mmzone.h Normal file
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@@ -0,0 +1,12 @@
#ifndef __ASM_MMZONE_H
#define __ASM_MMZONE_H
#ifdef CONFIG_NUMA
#include <asm/numa.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[(nid)])
#endif /* CONFIG_NUMA */
#endif /* __ASM_MMZONE_H */