OS-8361 IPD 4 (man page renumbering) tracking issue

Reviewed by: Brian Bennett <brian.bennett@joyent.com>
Approved by: Brian Bennett <brian.bennett@joyent.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/usr/src/man/man4d/usmn.4d b/usr/src/man/man4d/usmn.4d
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+.\"
+.\" This file and its contents are supplied under the terms of the
+.\" Common Development and Distribution License ("CDDL"), version 1.0.
+.\" You may only use this file in accordance with the terms of version
+.\" 1.0 of the CDDL.
+.\"
+.\" A full copy of the text of the CDDL should have accompanied this
+.\" source.  A copy of the CDDL is also available via the Internet at
+.\" http://www.illumos.org/license/CDDL.
+.\"
+.\"
+.\" Copyright 2021 Oxide Computer Company
+.\"
+.Dd July 30, 2021
+.Dt USMN 4D
+.Os
+.Sh NAME
+.Nm usmn
+.Nd AMD SMN user access driver
+.Sh SYNOPSIS
+.Pa /devices/pseudo/amdzen@0/usmn@2:usmn.*
+.Sh DESCRIPTION
+The
+.Nm
+driver provides the ability to read and write data from the AMD System
+Management Network
+.Pq SMN
+on AMD Family 17h
+.Pq Zen, Zen+, and Zen 2
+and AMD Family 19h
+.Pq Zen 3
+processors.
+.Pp
+This driver is intended strictly for facilitating platform development
+and is not recommended for systems that aren't doing kernel and platform
+development on AMD Zen platforms.
+Arbitrary writes to the SMN can severely damage and destabilize the system.
+If you do not need access to the SMN, then this driver should not be
+present on the system.
+.Sh SEE ALSO
+.Xr amdzen 4D ,
+.Xr zen_udf 4D