view usr/src/man/man7d/amdzen.7d @ 20101:1a5588aae48c

13144 refactor amdf17nbdf into a nexus 13145 rewrite amdf17nbdf to use the ksensor framework 13146 Want a driver for AMD SMN user access Reviewed by: Patrick Mooney <pmooney@pfmooney.com> Reviewed by: Mike Zeller <mike.zeller@joyent.com> Reviewed by: Robert French <robert@robertdfrench.me> Approved by: Richard Lowe <richlowe@richlowe.net>
author Robert Mustacchi <rm@fingolfin.org>
date Wed, 08 Apr 2020 21:35:09 -0700
parents
children 4bb6be08390f
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.\" Copyright 2020 Oxide Computer Company
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.Dd September 1, 2020
.Dt AMDZEN 7D
.Os
.Sh NAME
.Nm amdzen ,
.Nm amdzen_stub
.Nd AMD Zen Nexus Driver
.Sh DESCRIPTION
The
.Sy amdzen
driver provides access to the AMD Zen, Zen+, and Zen 2
.Pq Family 17h
processor families Northbridge, Data Fabric, and System Management Network
.Pq SMN .
This driver is a nexus driver and facilitates access to these devices
between various other devices such as
.Xr smntemp 7D .
The various processor devices that make up the northbridge and data
fabric have the
.Sy amdzen_stub
driver attached to them.
The different devices are all amalgamated and a single uniform view is
provided by the
.Sy amdzen
driver.
.Sh ARCHITECTURE
The
.Sy amdzen
and
.Sy amdzen_stub
drivers are limited to
.Sy x86
platforms with AMD Family 17h processors.
.Sh SEE ALSO
.Xr smntemp 7D