diff options
Diffstat (limited to 'usr/src/man/man7d/amdzen.7d')
| -rw-r--r-- | usr/src/man/man7d/amdzen.7d | 46 |
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 , |