[PATCH v12 4/5] arm64, numa: Add NUMA support for arm64 platforms.

Will Deacon
2016-02-23T10:26:11Z

On Mon, Feb 22, 2016 at 05:58:22PM -0800, David Daney wrote:
> From: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
>
> 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>
> ---
> arch/arm64/Kconfig | 26 +++
> arch/arm64/include/asm/mmzone.h | 12 ++
> arch/arm64/include/asm/numa.h | 45 +++++
> arch/arm64/include/asm/topology.h | 10 +
> arch/arm64/kernel/pci.c | 10 +
> arch/arm64/kernel/setup.c | 4 +
> arch/arm64/kernel/smp.c | 4 +
> arch/arm64/mm/Makefile | 1 +
> arch/arm64/mm/init.c | 34 +++-
> arch/arm64/mm/mmu.c | 1 +
> arch/arm64/mm/numa.c | 403 ++++++++++++++++++++++++++++++++++++++
> 11 files changed, 545 insertions(+), 5 deletions(-)
> create mode 100644 arch/arm64/include/asm/mmzone.h
> create mode 100644 arch/arm64/include/asm/numa.h
> create mode 100644 arch/arm64/mm/numa.c

[...]

> diff --git a/arch/arm64/include/asm/mmzone.h b/arch/arm64/include/asm/mmzone.h
> new file mode 100644
> index 0000000..a0de9e6
> --- /dev/null
> +++ b/arch/arm64/include/asm/mmzone.h
> @@ -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 */

What happened to the patch cleaning this up in generic code?

Will