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authorLijo Lazar <[email protected]>2023-09-28 09:04:11 +0530
committerAlex Deucher <[email protected]>2023-10-05 17:59:35 -0400
commit4798db85b76a0e2bebe8bb51251c2688b1e8ab93 (patch)
tree60afc6fb099468483fd35bfd700c377a93899899
parent76da73f0266cd0141bd60e4c21bbbdff2abafe63 (diff)
Documentation/amdgpu: Add board info details
Add documentation for board info sysfs attribute. Signed-off-by: Lijo Lazar <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
-rw-r--r--Documentation/gpu/amdgpu/driver-misc.rst6
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c16
2 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/gpu/amdgpu/driver-misc.rst b/Documentation/gpu/amdgpu/driver-misc.rst
index 4321c38fef21..82b47f1818ac 100644
--- a/Documentation/gpu/amdgpu/driver-misc.rst
+++ b/Documentation/gpu/amdgpu/driver-misc.rst
@@ -32,6 +32,12 @@ unique_id
.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
:doc: unique_id
+board_info
+----------
+
+.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+ :doc: board_info
+
Accelerated Processing Units (APU) Info
---------------------------------------
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 10f1641aede9..27c95bb02411 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -162,6 +162,22 @@ static ssize_t amdgpu_device_get_pcie_replay_count(struct device *dev,
static DEVICE_ATTR(pcie_replay_count, 0444,
amdgpu_device_get_pcie_replay_count, NULL);
+/**
+ * DOC: board_info
+ *
+ * The amdgpu driver provides a sysfs API for giving board related information.
+ * It provides the form factor information in the format
+ *
+ * type : form factor
+ *
+ * Possible form factor values
+ *
+ * - "cem" - PCIE CEM card
+ * - "oam" - Open Compute Accelerator Module
+ * - "unknown" - Not known
+ *
+ */
+
static ssize_t amdgpu_device_get_board_info(struct device *dev,
struct device_attribute *attr,
char *buf)