x86/platform/uv: Update sysfs documentation
authorMike Travis <mike.travis@hpe.com>
Sat, 28 Nov 2020 03:42:27 +0000 (21:42 -0600)
committerBorislav Petkov <bp@suse.de>
Mon, 7 Dec 2020 20:19:20 +0000 (21:19 +0100)
Update sysfs documentation file to include moved /proc leaves.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201128034227.120869-6-mike.travis@hpe.com
Documentation/ABI/testing/sysfs-firmware-sgi_uv

index 351b1f4..637c668 100644 (file)
@@ -7,10 +7,25 @@ Description:
 
                Under that directory are a number of read-only attributes::
 
+                       archtype
+                       hub_type
+                       hubless
                        partition_id
                        coherence_id
                        uv_type
 
+               The archtype entry contains the UV architecture type that
+               is used to select arch-dependent addresses and features.
+               It can be set via the OEM_ID in the ACPI MADT table or by
+               UVsystab entry both passed from UV BIOS.
+
+               The hub_type entry is used to select the type of hub which is
+               similar to uv_type but encoded in a binary format.  Include
+               the file uv_hub.h to get the definitions.
+
+               The hubless entry basically is present and set only if there
+               is no hub.  In this case the hub_type entry is not present.
+
                The partition_id entry contains the partition id.
                UV systems can be partitioned into multiple physical
                machines, which each partition running a unique copy
@@ -24,6 +39,7 @@ Description:
 
                The uv_type entry contains the hub revision number.
                This value can be used to identify the UV system version::
+                       "0.*" = Hubless UV ('*' is subtype)
 
                        "3.0" = UV2
                        "5.0" = UV3