[PATCH v6 0/4] arm64, numa: Add numa support for arm64 platforms

Ganapatrao Kulkarni gkulkarni at caviumnetworks.com
Tue Oct 20 03:45:27 PDT 2015

	- defined and implemented the numa dt binding using
	node property proximity and device node distance-map.
	- renamed dt_numa to of_numa

        - created base verion of numa.c which creates dummy numa without using dt
          on single socket platforms. Then added patches for dt support.
        - Incorporated review comments from Hanjun Guo.

done changes as per Arnd review comments.

Added changes to support numa on arm64 based platforms.
Tested these patches on cavium's multinode(2 node topology) platform.
In this patchset, defined and implemented dt bindings for numa mapping
for core and memory using device node property arm,associativity.

Defined and implemented numa map for memory, cores to node and
proximity distance matrix of nodes.

Initial patchset to support numa on arm64 platforms.

        1. This patchset is tested for numa with dt on
           thunderx single socket and dual socket boards.
        2. Numa DT booting needs the dt memory nodes, which are deleted in current efi-stub,
        hence to try numa with dt, you need to rebase with ard's patchset.

Ganapatrao Kulkarni (4):
  arm64, numa: adding numa support for arm64 platforms.
  Documentation, dt, arm64/arm: dt bindings for numa.
  arm64/arm, numa, dt: adding numa dt binding implementation for arm64
  arm64, dt, thunderx: Add initial dts for Cavium Thunderx in 2 node

 Documentation/devicetree/bindings/arm/numa.txt  | 275 ++++++++
 arch/arm64/Kconfig                              |  35 +
 arch/arm64/boot/dts/cavium/Makefile             |   2 +-
 arch/arm64/boot/dts/cavium/thunder-88xx-2n.dts  |  82 +++
 arch/arm64/boot/dts/cavium/thunder-88xx-2n.dtsi | 806 ++++++++++++++++++++++++
 arch/arm64/include/asm/mmzone.h                 |  17 +
 arch/arm64/include/asm/numa.h                   |  73 +++
 arch/arm64/kernel/Makefile                      |   1 +
 arch/arm64/kernel/of_numa.c                     | 221 +++++++
 arch/arm64/kernel/setup.c                       |   9 +
 arch/arm64/kernel/smp.c                         |   3 +
 arch/arm64/mm/Makefile                          |   1 +
 arch/arm64/mm/init.c                            |  31 +-
 arch/arm64/mm/numa.c                            | 539 ++++++++++++++++
 14 files changed, 2090 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/numa.txt
 create mode 100644 arch/arm64/boot/dts/cavium/thunder-88xx-2n.dts
 create mode 100644 arch/arm64/boot/dts/cavium/thunder-88xx-2n.dtsi
 create mode 100644 arch/arm64/include/asm/mmzone.h
 create mode 100644 arch/arm64/include/asm/numa.h
 create mode 100644 arch/arm64/kernel/of_numa.c
 create mode 100644 arch/arm64/mm/numa.c


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