From: Alastair D'Silva <>

Signed-off-by: Alastair D'Silva <>
 Documentation/accelerators/ocxl.rst | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/accelerators/ocxl.rst 
index ddcc58d01cfb..144595a80a1c 100644
--- a/Documentation/accelerators/ocxl.rst
+++ b/Documentation/accelerators/ocxl.rst
@@ -157,6 +157,16 @@ OCXL_IOCTL_GET_METADATA:
   Obtains configuration information from the card, such at the size of
   MMIO areas, the AFU version, and the PASID for the current context.
+  Allows the AFU to wake a userspace thread executing 'wait'. Returns
+  information to userspace to allow it to configure the AFU.
+  Notifies userspace as to the platform the kernel believes we are on,
+  which may differ from what userspace believes. Also reports on which CPU
+  features which are usable from userspace.

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