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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
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