linux-kernel - [PATCH 3/4] Documentation/gpu: Document GFXOFF's count and residency

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220722203347.70176-4-andrealmeid@igalia.com>
Date:   Fri, 22 Jul 2022 17:33:46 -0300
From:   André Almeida <andrealmeid@...lia.com>
To:     Alex Deucher <alexander.deucher@....com>,
        'Christian König' <christian.koenig@....com>,
        'Pan Xinhui' <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Hawking Zhang <Hawking.Zhang@....com>,
        Tao Zhou <tao.zhou1@....com>,
        Felix Kuehling <Felix.Kuehling@....com>,
        Jack Xiao <Jack.Xiao@....com>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Tom St Denis <tom.stdenis@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>
Cc:     kernel-dev@...lia.com,
        André Almeida <andrealmeid@...lia.com>
Subject: [PATCH 3/4] Documentation/gpu: Document GFXOFF's count and residency

Add documentation explaining those two new files.

Signed-off-by: André Almeida <andrealmeid@...lia.com>
---
 Documentation/gpu/amdgpu/thermal.rst | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/gpu/amdgpu/thermal.rst b/Documentation/gpu/amdgpu/thermal.rst
index 997231b6adcf..c31f94c6c681 100644
--- a/Documentation/gpu/amdgpu/thermal.rst
+++ b/Documentation/gpu/amdgpu/thermal.rst
@@ -104,3 +104,17 @@ Read it to check current GFXOFF's status of a GPU::
 If GFXOFF is enabled, the value will be transitioning around [0, 3], always
 getting into 0 when possible. When it's disabled, it's always at 2. Returns
 ``-EINVAL`` if it's not supported.
+
+``amdgpu_gfxoff_count``
+-----------------------
+
+Read it to get the total GFXOFF entry count at the time of query since system
+power-up. *Only supported in vangogh*
+
+``amdgpu_gfxoff_residency``
+---------------------------
+
+Write 1 to amdgpu_gfxoff_residency to start logging, and 0 to stop. Read it to
+get average GFXOFF residency % multiplied by 100 during the last logging
+interval. E.g. a value of 7854 means 78.54% of the time in the last logging
+interval the GPU was in GFXOFF mode. *Only supported in vangogh*
-- 
2.37.1