[PATCH 2/2] dt-bindings: Remove obsolete numa.txt

["Rob Herring (Arm)" <robh@kernel.org>]

The NUMA binding is now covered by the dtschema
numa-distance-map-v1.yaml and CPU and memory node schemas with all
the relevant descriptions moved to them.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 Documentation/devicetree/bindings/numa.txt | 319 ---------------------
 1 file changed, 319 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/numa.txt

diff --git a/Documentation/devicetree/bindings/numa.txt b/Documentation/devicetree/bindings/numa.txt
deleted file mode 100644
index 42f282c2f3cc..000000000000
--- a/Documentation/devicetree/bindings/numa.txt
+++ /dev/null
@@ -1,319 +0,0 @@
-==============================================================================
-NUMA binding description.
-==============================================================================
-
-==============================================================================
-1 - Introduction
-==============================================================================
-
-Systems employing a Non Uniform Memory Access (NUMA) architecture contain
-collections of hardware resources including processors, memory, and I/O buses,
-that comprise what is commonly known as a NUMA node.
-Processor accesses to memory within the local NUMA node is generally faster
-than processor accesses to memory outside of the local NUMA node.
-DT defines interfaces that allow the platform to convey NUMA node
-topology information to OS.
-
-==============================================================================
-2 - numa-node-id
-==============================================================================
-
-For the purpose of identification, each NUMA node is associated with a unique
-token known as a node id. For the purpose of this binding
-a node id is a 32-bit integer.
-
-A device node is associated with a NUMA node by the presence of a
-numa-node-id property which contains the node id of the device.
-
-Example:
-	/* numa node 0 */
-	numa-node-id = <0>;
-
-	/* numa node 1 */
-	numa-node-id = <1>;
-
-==============================================================================
-3 - distance-map
-==============================================================================
-
-The optional device tree node distance-map describes the relative
-distance (memory latency) between all numa nodes.
-
-- compatible : Should at least contain "numa-distance-map-v1".
-
-- distance-matrix
-  This property defines a matrix to describe the relative distances
-  between all numa nodes.
-  It is represented as a list of node pairs and their relative distance.
-
-  Note:
-	1. Each entry represents distance from first node to second node.
-	The distances are equal in either direction.
-	2. The distance from a node to self (local distance) is represented
-	with value 10 and all internode distance should be represented with
-	a value greater than 10.
-	3. distance-matrix should have entries in lexicographical ascending
-	order of nodes.
-	4. There must be only one device node distance-map which must
-	reside in the root node.
-	5. If the distance-map node is not present, a default
-	distance-matrix is used.
-
-Example:
-	4 nodes connected in mesh/ring topology as below,
-
-		0_______20______1
-		|               |
-		|               |
-		20             20
-		|               |
-		|               |
-		|_______________|
-		3       20      2
-
-	if relative distance for each hop is 20,
-	then internode distance would be,
-	      0 -> 1 = 20
-	      1 -> 2 = 20
-	      2 -> 3 = 20
-	      3 -> 0 = 20
-	      0 -> 2 = 40
-	      1 -> 3 = 40
-
-     and dt presentation for this distance matrix is,
-
-		distance-map {
-			 compatible = "numa-distance-map-v1";
-			 distance-matrix = <0 0  10>,
-					   <0 1  20>,
-					   <0 2  40>,
-					   <0 3  20>,
-					   <1 0  20>,
-					   <1 1  10>,
-					   <1 2  20>,
-					   <1 3  40>,
-					   <2 0  40>,
-					   <2 1  20>,
-					   <2 2  10>,
-					   <2 3  20>,
-					   <3 0  20>,
-					   <3 1  40>,
-					   <3 2  20>,
-					   <3 3  10>;
-		};
-
-==============================================================================
-4 - Empty memory nodes
-==============================================================================
-
-Empty memory nodes, which no memory resides in, are allowed. There are no
-device nodes for these empty memory nodes. However, the NUMA node IDs and
-distance maps are still valid and memory may be added into them through
-hotplug afterwards.
-
-Example:
-
-	memory@0 {
-		device_type = "memory";
-		reg = <0x0 0x0 0x0 0x80000000>;
-		numa-node-id = <0>;
-	};
-
-	memory@80000000 {
-		device_type = "memory";
-		reg = <0x0 0x80000000 0x0 0x80000000>;
-		numa-node-id = <1>;
-	};
-
-	/* Empty memory node 2 and 3 */
-	distance-map {
-		compatible = "numa-distance-map-v1";
-		distance-matrix = <0 0  10>,
-				  <0 1  20>,
-				  <0 2  40>,
-				  <0 3  20>,
-				  <1 0  20>,
-				  <1 1  10>,
-				  <1 2  20>,
-				  <1 3  40>,
-				  <2 0  40>,
-				  <2 1  20>,
-				  <2 2  10>,
-				  <2 3  20>,
-				  <3 0  20>,
-				  <3 1  40>,
-				  <3 2  20>,
-				  <3 3  10>;
-	};
-
-==============================================================================
-5 - Example dts
-==============================================================================
-
-Dual socket system consists of 2 boards connected through ccn bus and
-each board having one socket/soc of 8 cpus, memory and pci bus.
-
-	memory@c00000 {
-		device_type = "memory";
-		reg = <0x0 0xc00000 0x0 0x80000000>;
-		/* node 0 */
-		numa-node-id = <0>;
-	};
-
-	memory@10000000000 {
-		device_type = "memory";
-		reg = <0x100 0x0 0x0 0x80000000>;
-		/* node 1 */
-		numa-node-id = <1>;
-	};
-
-	cpus {
-		#address-cells = <2>;
-		#size-cells = <0>;
-
-		cpu@0 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x0>;
-			enable-method = "psci";
-			/* node 0 */
-			numa-node-id = <0>;
-		};
-		cpu@1 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x1>;
-			enable-method = "psci";
-			numa-node-id = <0>;
-		};
-		cpu@2 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x2>;
-			enable-method = "psci";
-			numa-node-id = <0>;
-		};
-		cpu@3 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x3>;
-			enable-method = "psci";
-			numa-node-id = <0>;
-		};
-		cpu@4 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x4>;
-			enable-method = "psci";
-			numa-node-id = <0>;
-		};
-		cpu@5 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x5>;
-			enable-method = "psci";
-			numa-node-id = <0>;
-		};
-		cpu@6 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x6>;
-			enable-method = "psci";
-			numa-node-id = <0>;
-		};
-		cpu@7 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x7>;
-			enable-method = "psci";
-			numa-node-id = <0>;
-		};
-		cpu@8 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x8>;
-			enable-method = "psci";
-			/* node 1 */
-			numa-node-id = <1>;
-		};
-		cpu@9 {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0x9>;
-			enable-method = "psci";
-			numa-node-id = <1>;
-		};
-		cpu@a {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0xa>;
-			enable-method = "psci";
-			numa-node-id = <1>;
-		};
-		cpu@b {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0xb>;
-			enable-method = "psci";
-			numa-node-id = <1>;
-		};
-		cpu@c {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0xc>;
-			enable-method = "psci";
-			numa-node-id = <1>;
-		};
-		cpu@d {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0xd>;
-			enable-method = "psci";
-			numa-node-id = <1>;
-		};
-		cpu@e {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0xe>;
-			enable-method = "psci";
-			numa-node-id = <1>;
-		};
-		cpu@f {
-			device_type = "cpu";
-			compatible =  "arm,armv8";
-			reg = <0x0 0xf>;
-			enable-method = "psci";
-			numa-node-id = <1>;
-		};
-	};
-
-	pcie0: pcie0@848000000000 {
-		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@948000000000 {
-		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>;
-	};
-- 
2.47.2


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