drm/amd/pm: Add support to query partition metrics

Add interfaces to query compute partition related metrics data.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 2148c8db5a59..d98c95d1ed83 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -2019,3 +2019,35 @@ int amdgpu_dpm_get_dpm_clock_table(struct amdgpu_device *adev,
 
 	return ret;
 }
+
+/**
+ * amdgpu_dpm_get_xcp_metrics - Retrieve metrics for a specific compute
+ * partition
+ * @adev: Pointer to the device.
+ * @xcp_id: Identifier of the XCP for which metrics are to be retrieved.
+ * @table: Pointer to a buffer where the metrics will be stored. If NULL, the
+ * function returns the size of the metrics structure.
+ *
+ * This function retrieves metrics for a specific XCP, including details such as
+ * VCN/JPEG activity, clock frequencies, and other performance metrics. If the
+ * table parameter is NULL, the function returns the size of the metrics
+ * structure without populating it.
+ *
+ * Return: Size of the metrics structure on success, or a negative error code on failure.
+ */
+ssize_t amdgpu_dpm_get_xcp_metrics(struct amdgpu_device *adev, int xcp_id,
+				   void *table)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+	int ret = 0;
+
+	if (!pp_funcs->get_xcp_metrics)
+		return 0;
+
+	mutex_lock(&adev->pm.mutex);
+	ret = pp_funcs->get_xcp_metrics(adev->powerplay.pp_handle, xcp_id,
+					table);
+	mutex_unlock(&adev->pm.mutex);
+
+	return ret;
+}