[illumos-gate merge]release-20201105

commit 059f070059c50b83e8b46b39b4dde67bf2feb1dc
    13236 Want Zen 3 socket information
commit e9abe9d6424a9213df11b3243f6957e6a0b91e48
    13235 amdzen(7D) support for Zen 3
commit 5edbd2fec7b63b423df5bd21c4b0f7b775123a40
    13238 vaes, vpclmulqdq should be plumbed through isainfo
    13239 umip, etc. are incorrectly conditioned in cpuid.c
commit c4b98ceff2f78fc5bb2f6bbe2e76627f04ef66f5
    13237 Plumb through PCID on AMD

1 files changed, 38 insertions, 8 deletions

diff --git a/usr/src/man/man7d/amdzen.7d b/usr/src/man/man7d/amdzen.7d
index 171d36b0d6..7c24b7106a 100644
--- a/usr/src/man/man7d/amdzen.7d
+++ b/usr/src/man/man7d/amdzen.7d
@@ -11,7 +11,7 @@
 .\"
 .\" Copyright 2020 Oxide Computer Company
 .\"
-.Dd September 1, 2020
+.Dd September 26, 2020
 .Dt AMDZEN 7D
 .Os
 .Sh NAME
@@ -20,13 +20,29 @@
 .Nd AMD Zen Nexus Driver
 .Sh DESCRIPTION
 The
-.Sy amdzen
-driver provides access to the AMD Zen, Zen+, and Zen 2
+.Nm
+driver provides access to the Northbridge, Data Fabric, and System
+Management Network
+.Pq SMN
+for a number of AMD processor lines, including AMD Ryzen CPUs and APUs,
+ThreadRipper CPUs, and EPYC CPUs from the following families:
+.Bl -bullet
+.It
+AMD Zen Naples, Summit Ridge, Whitehaven
+.Pq Family 17h
+.It
+AMD Zen+ Colfax, Picasso, and Pinnacle Ridge
 .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
+.It
+AMD Zen 2 Castle Peak, Matisse, Rome, and Renoir
+.Pq Family 17h
+.It
+AMD Zen 3 Milan and Vermeer
+.Pq Family 19h
+.El
+.Pp
+This driver is a nexus driver and facilitates access to the northbridge,
+data fabric, and SMN between various other devices such as
 .Xr smntemp 7D .
 The various processor devices that make up the northbridge and data
 fabric have the
@@ -36,6 +52,20 @@ The different devices are all amalgamated and a single uniform view is
 provided by the
 .Sy amdzen
 driver.
+.Pp
+The
+.Nm
+driver is a nexus driver that has the following children:
+.Bl -tag -width "smntemp(7D)"
+.It Xr smntemp 7D
+Provides access to on-die temperature sensors.
+.It Xr usmn 7D
+Provides read access to the SMN.
+This driver is intended for development purposes.
+.It Xr zen_udf 7D
+Provides read access to the data fabric.
+This driver is intended for development purposes.
+.El
 .Sh ARCHITECTURE
 The
 .Sy amdzen
@@ -43,7 +73,7 @@ and
 .Sy amdzen_stub
 drivers are limited to
 .Sy x86
-platforms with AMD Family 17h processors.
+platforms with AMD Family 17h and 19h processors.
 .Sh SEE ALSO
 .Xr smntemp 7D ,
 .Xr usmn 7D ,