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authorKent Russell <kent.russell@amd.com>2020-03-13 16:21:55 +0300
committerAlex Deucher <alexander.deucher@amd.com>2020-04-01 21:44:41 +0300
commitbd607166af7fe31f8d8e9c575f4561a4b56b9f24 (patch)
tree9c5c8028266828a5886ca9d24908e2b2dc6c4a7a /Documentation/gpu
parent3148a6a0ef3cf93570f30a477292768f7eb5d3c3 (diff)
downloadlinux-bd607166af7fe31f8d8e9c575f4561a4b56b9f24.tar.xz
drm/amdgpu: Enable reading FRU chip via I2C v3
Allow for reading of information like manufacturer, product number and serial number from the FRU chip. Report the serial number as the new sysfs file serial_number. Note that this only works on server cards, as consumer cards do not feature the FRU chip, which contains this information. v2: Add documentation to amdgpu.rst, add helper functions, rename functions for consistency, fix bad starting offset v3: Remove testing definitions Signed-off-by: Kent Russell <kent.russell@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'Documentation/gpu')
-rw-r--r--Documentation/gpu/amdgpu.rst24
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/gpu/amdgpu.rst b/Documentation/gpu/amdgpu.rst
index 0efede580039..d9ea09ec8e24 100644
--- a/Documentation/gpu/amdgpu.rst
+++ b/Documentation/gpu/amdgpu.rst
@@ -202,3 +202,27 @@ busy_percent
.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
:doc: busy_percent
+
+GPU Product Information
+=======================
+
+Information about the GPU can be obtained on certain cards
+via sysfs
+
+product_name
+------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+ :doc: product_name
+
+product_number
+--------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+ :doc: product_name
+
+serial_number
+-------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+ :doc: serial_number