linux-kernel - [PATCH v2 5/5] x86/platform/uv: Update sysfs document file

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Date:   Fri, 27 Nov 2020 21:42:27 -0600
From:   Mike Travis <mike.travis@....com>
To:     Hans de Goede <hdegoede@...hat.com>,
        Justin Ernst <justin.ernst@....com>,
        Mark Gross <mgross@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, Steve Wahl <steve.wahl@....com>
Cc:     Mike Travis <mike.travis@....com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Russ Anderson <russ.anderson@....com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Ilya Dryomov <idryomov@...il.com>,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org
Subject: [PATCH v2 5/5] x86/platform/uv: Update sysfs document file

Update sysfs Document file to include moved /proc leaves.

Signed-off-by: Mike Travis <mike.travis@....com>
---
 Documentation/ABI/testing/sysfs-firmware-sgi_uv | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-firmware-sgi_uv b/Documentation/ABI/testing/sysfs-firmware-sgi_uv
index 50e25ce80fa2..b377f1470ba2 100644
--- a/Documentation/ABI/testing/sysfs-firmware-sgi_uv
+++ b/Documentation/ABI/testing/sysfs-firmware-sgi_uv
@@ -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.
+		If 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
 			"7.0" = UV4
-- 
2.21.0