[PATCH 7/8] drm/amd/powerplay: add Sienna Cichlid support for gpu metrics export

[Evan Quan]

Add Sienna Cichlid gpu metrics export interface.

Change-Id: I89e6a4415fe467e7e4aaabe07d9e8cee379caa25
Signed-off-by: Evan Quan <evan.quan at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
---
 .../drm/amd/powerplay/sienna_cichlid_ppt.c    | 91 ++++++++++++++++++-
 1 file changed, 89 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
index c15496aea50f..345b8571f716 100644
--- a/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
@@ -385,14 +385,26 @@ static int sienna_cichlid_tables_init(struct smu_context *smu)
 
 	smu_table->metrics_table = kzalloc(sizeof(SmuMetrics_t), GFP_KERNEL);
 	if (!smu_table->metrics_table)
-		return -ENOMEM;
+		goto err0_out;
 	smu_table->metrics_time = 0;
 
+	smu_table->gpu_metrics_table_size = sizeof(struct gpu_metrics_v1_0);
+	smu_table->gpu_metrics_table = kzalloc(smu_table->gpu_metrics_table_size, GFP_KERNEL);
+	if (!smu_table->gpu_metrics_table)
+		goto err1_out;
+
 	smu_table->watermarks_table = kzalloc(sizeof(Watermarks_t), GFP_KERNEL);
 	if (!smu_table->watermarks_table)
-		return -ENOMEM;
+		goto err2_out;
 
 	return 0;
+
+err2_out:
+	kfree(smu_table->gpu_metrics_table);
+err1_out:
+	kfree(smu_table->metrics_table);
+err0_out:
+	return -ENOMEM;
 }
 
 static int sienna_cichlid_get_smu_metrics_data(struct smu_context *smu,
@@ -2663,6 +2675,80 @@ static void sienna_cichlid_i2c_control_fini(struct smu_context *smu, struct i2c_
 	i2c_del_adapter(control);
 }
 
+static ssize_t sienna_cichlid_get_gpu_metrics(struct smu_context *smu,
+					      void **table)
+{
+	struct smu_table_context *smu_table = &smu->smu_table;
+	struct gpu_metrics_v1_0 *gpu_metrics =
+		(struct gpu_metrics_v1_0 *)smu_table->gpu_metrics_table;
+	SmuMetrics_t metrics;
+	int ret = 0;
+
+	mutex_lock(&smu->metrics_lock);
+
+	ret = smu_cmn_update_table(smu,
+				   SMU_TABLE_SMU_METRICS,
+				   0,
+				   smu_table->metrics_table,
+				   false);
+	if (ret) {
+		dev_info(smu->adev->dev, "Failed to export SMU metrics table!\n");
+		mutex_unlock(&smu->metrics_lock);
+		return ret;
+	}
+	smu_table->metrics_time = jiffies;
+
+	memcpy(&metrics, smu_table->metrics_table, sizeof(SmuMetrics_t));
+
+	mutex_unlock(&smu->metrics_lock);
+
+	smu_v11_0_init_gpu_metrics_v1_0(gpu_metrics);
+
+	gpu_metrics->temperature_edge = metrics.TemperatureEdge;
+	gpu_metrics->temperature_hotspot = metrics.TemperatureHotspot;
+	gpu_metrics->temperature_mem = metrics.TemperatureMem;
+	gpu_metrics->temperature_vrgfx = metrics.TemperatureVrGfx;
+	gpu_metrics->temperature_vrsoc = metrics.TemperatureVrSoc;
+	gpu_metrics->temperature_vrmem = metrics.TemperatureVrMem0;
+
+	gpu_metrics->average_gfx_activity = metrics.AverageGfxActivity;
+	gpu_metrics->average_umc_activity = metrics.AverageUclkActivity;
+	gpu_metrics->average_mm_activity = metrics.VcnActivityPercentage;
+
+	gpu_metrics->average_socket_power = metrics.AverageSocketPower;
+	gpu_metrics->energy_accumulator = metrics.EnergyAccumulator;
+
+	if (metrics.AverageGfxActivity <= SMU_11_0_7_GFX_BUSY_THRESHOLD)
+		gpu_metrics->average_gfxclk_frequency = metrics.AverageGfxclkFrequencyPostDs;
+	else
+		gpu_metrics->average_gfxclk_frequency = metrics.AverageGfxclkFrequencyPreDs;
+	gpu_metrics->average_uclk_frequency = metrics.AverageUclkFrequencyPostDs;
+	gpu_metrics->average_vclk0_frequency = metrics.AverageVclk0Frequency;
+	gpu_metrics->average_dclk0_frequency = metrics.AverageDclk0Frequency;
+	gpu_metrics->average_vclk1_frequency = metrics.AverageVclk1Frequency;
+	gpu_metrics->average_dclk1_frequency = metrics.AverageDclk1Frequency;
+
+	gpu_metrics->current_gfxclk = metrics.CurrClock[PPCLK_GFXCLK];
+	gpu_metrics->current_socclk = metrics.CurrClock[PPCLK_SOCCLK];
+	gpu_metrics->current_uclk = metrics.CurrClock[PPCLK_UCLK];
+	gpu_metrics->current_vclk0 = metrics.CurrClock[PPCLK_VCLK_0];
+	gpu_metrics->current_dclk0 = metrics.CurrClock[PPCLK_DCLK_0];
+	gpu_metrics->current_vclk1 = metrics.CurrClock[PPCLK_VCLK_1];
+	gpu_metrics->current_dclk1 = metrics.CurrClock[PPCLK_DCLK_1];
+
+	gpu_metrics->throttle_status = metrics.ThrottlerStatus;
+
+	gpu_metrics->current_fan_speed = metrics.CurrFanSpeed;
+
+	gpu_metrics->pcie_link_width =
+			smu_v11_0_get_current_pcie_link_width(smu);
+	gpu_metrics->pcie_link_speed =
+			smu_v11_0_get_current_pcie_link_speed(smu);
+
+	*table = (void *)gpu_metrics;
+
+	return sizeof(struct gpu_metrics_v1_0);
+}
 
 static const struct pptable_funcs sienna_cichlid_ppt_funcs = {
 	.get_allowed_feature_mask = sienna_cichlid_get_allowed_feature_mask,
@@ -2740,6 +2826,7 @@ static const struct pptable_funcs sienna_cichlid_ppt_funcs = {
 	.set_soft_freq_limited_range = smu_v11_0_set_soft_freq_limited_range,
 	.get_pp_feature_mask = smu_cmn_get_pp_feature_mask,
 	.set_pp_feature_mask = smu_cmn_set_pp_feature_mask,
+	.get_gpu_metrics = sienna_cichlid_get_gpu_metrics,
 };
 
 void sienna_cichlid_set_ppt_funcs(struct smu_context *smu)
-- 
2.28.0