Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/powerpc/ibm,vas.txt b/Documentation/devicetree/bindings/powerpc/ibm,vas.txt
new file mode 100644
index 000000000..bf11d2faf
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/ibm,vas.txt
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+* IBM Powerpc Virtual Accelerator Switchboard (VAS)
+
+VAS is a hardware mechanism that allows kernel subsystems and user processes
+to directly submit compression and other requests to Nest accelerators (NX)
+or other coprocessors functions.
+
+Required properties:
+- compatible : should be "ibm,vas".
+- ibm,vas-id : A unique identifier for each instance of VAS in the system
+- reg : Should contain 4 pairs of 64-bit fields specifying the Hypervisor
+  window context start and length, OS/User window context start and length,
+  "Paste address" start and length, "Paste window id" start bit and number
+  of bits)
+
+Example:
+
+	vas@6019100000000 {
+		compatible = "ibm,vas", "ibm,power9-vas";
+		reg = <0x6019100000000 0x2000000 0x6019000000000 0x100000000 0x8000000000000 0x100000000 0x20 0x10>;
+		name = "vas";
+		ibm,vas-id = <0x1>;
+	};