On Mon, Jan 18, 2016 at 10:06:01PM +0530, Ganapatrao Kulkarni wrote:
> DT bindings for numa mapping of memory, cores and IOs.
>
> Reviewed-by: Robert Richter <rrichter@xxxxxxxxxx>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@xxxxxxxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/arm/numa.txt | 272 +++++++++++++++++++++++++
> 1 file changed, 272 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/numa.txt
This is looks okay to me, but some cosmetic things on the example.
> +==============================================================================
> +4 - Example dts
> +==============================================================================
> +
> +2 sockets system consists of 2 boards connected through ccn bus and
> +each board having one socket/soc of 8 cpus, memory and pci bus.
> +
> + memory@00c00000 {
Drop the leading 0s on unit addresses.
> + device_type = "memory";
> + reg = <0x0 0x00c00000 0x0 0x80000000>;
> + /* node 0 */
> + numa-node-id = <0>;
> + };
> +
> + memory@10000000000 {
> + device_type = "memory";
> + reg = <0x100 0x00000000 0x0 0x80000000>;
> + /* node 1 */
> + numa-node-id = <1>;
> + };
> +
> + cpus {
> + #address-cells = <2>;
> + #size-cells = <0>;
> +
> + cpu@000 {
Same here (leaving one of course).
> + device_type = "cpu";
> + compatible = "arm,armv8";
> + reg = <0x0 0x000>;
> + enable-method = "psci";
> + /* node 0 */
> + numa-node-id = <0>;
> + };
> + cpu@001 {
and so on...
> + device_type = "cpu";
> + compatible = "arm,armv8";
> + reg = <0x0 0x001>;
Either all leading 0s or none.
> + reg = <0x0 0x008>;
> + enable-method = "psci";
> + /* node 1 */
Kind of a pointless comment.
Wouldn't each cluster of cpus for a given numa node be in a different
cpu affinity? Certainly not required by the architecture, but the common
case at least.
> + numa-node-id = <1>;
> + };
[...]
> + pcie0: pcie0@0x8480,00000000 {
Drop the 0x and the comma.
> + compatible = "arm,armv8";
> + device_type = "pci";
> + bus-range = <0 255>;
> + #size-cells = <2>;
> + #address-cells = <3>;
> + reg = <0x8480 0x00000000 0 0x10000000>; /* Configuration space */
> + ranges = <0x03000000 0x8010 0x00000000 0x8010 0x00000000 0x70 0x00000000>;
> + /* node 0 */
> + numa-node-id = <0>;
> + };
> +
> + pcie1: pcie1@0x9480,00000000 {
ditto
> + compatible = "arm,armv8";
> + device_type = "pci";
> + bus-range = <0 255>;
> + #size-cells = <2>;
> + #address-cells = <3>;
> + reg = <0x9480 0x00000000 0 0x10000000>; /* Configuration space */
> + ranges = <0x03000000 0x9010 0x00000000 0x9010 0x00000000 0x70 0x00000000>;
> + /* node 1 */
> + numa-node-id = <1>;
> + };
> +
> + distance-map {
> + compatible = "numa-distance-map-v1";
> + distance-matrix = <0 0 10>,
> + <0 1 20>,
> + <1 1 10>;
> + };
> --
> 1.8.1.4
>
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