Commit ba74c8bf authored by Evan Quan's avatar Evan Quan Committed by Alex Deucher
Browse files

drm/amd/powerplay: support sensor reading on arcturus 



Support sensor reading for gpu loading, power and
temperatures.

Signed-off-by: default avatarEvan Quan <evan.quan@amd.com>
Reviewed-by: default avatarKevin Wang <kevin1.wang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 832a7062

drivers/gpu/drm/amd/powerplay/arcturus_ppt.c

+142 −0
Original line number Diff line number Diff line
@@ -853,6 +853,147 @@ static int arcturus_get_thermal_temperature_range(struct smu_context *smu, 
	return 0;

}



static int arcturus_get_metrics_table(struct smu_context *smu,

				      SmuMetrics_t *metrics_table)

{

	struct smu_table_context *smu_table= &smu->smu_table;

	int ret = 0;



	if (!smu_table->metrics_time ||

	     time_after(jiffies, smu_table->metrics_time + HZ / 1000)) {

		ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0,

				(void *)smu_table->metrics_table, false);

		if (ret) {

			pr_info("Failed to export SMU metrics table!\n");

			return ret;

		}

		smu_table->metrics_time = jiffies;

	}



	memcpy(metrics_table, smu_table->metrics_table, sizeof(SmuMetrics_t));



	return ret;

}



static int arcturus_get_current_activity_percent(struct smu_context *smu,

						 enum amd_pp_sensors sensor,

						 uint32_t *value)

{

	SmuMetrics_t metrics;

	int ret = 0;



	if (!value)

		return -EINVAL;



	ret = arcturus_get_metrics_table(smu, &metrics);

	if (ret)

		return ret;



	switch (sensor) {

	case AMDGPU_PP_SENSOR_GPU_LOAD:

		*value = metrics.AverageGfxActivity;

		break;

	case AMDGPU_PP_SENSOR_MEM_LOAD:

		*value = metrics.AverageUclkActivity;

		break;

	default:

		pr_err("Invalid sensor for retrieving clock activity\n");

		return -EINVAL;

	}



	return 0;

}



static int arcturus_get_gpu_power(struct smu_context *smu, uint32_t *value)

{

	SmuMetrics_t metrics;

	int ret = 0;



	if (!value)

		return -EINVAL;



	ret = arcturus_get_metrics_table(smu, &metrics);

	if (ret)

		return ret;



	*value = metrics.AverageSocketPower << 8;



	return 0;

}



static int arcturus_thermal_get_temperature(struct smu_context *smu,

					    enum amd_pp_sensors sensor,

					    uint32_t *value)

{

	SmuMetrics_t metrics;

	int ret = 0;



	if (!value)

		return -EINVAL;



	ret = arcturus_get_metrics_table(smu, &metrics);

	if (ret)

		return ret;



	switch (sensor) {

	case AMDGPU_PP_SENSOR_HOTSPOT_TEMP:

		*value = metrics.TemperatureHotspot *

			SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;

		break;

	case AMDGPU_PP_SENSOR_EDGE_TEMP:

		*value = metrics.TemperatureEdge *

			SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;

		break;

	case AMDGPU_PP_SENSOR_MEM_TEMP:

		*value = metrics.TemperatureHBM *

			SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;

		break;

	default:

		pr_err("Invalid sensor for retrieving temp\n");

		return -EINVAL;

	}



	return 0;

}



static int arcturus_read_sensor(struct smu_context *smu,

				enum amd_pp_sensors sensor,

				void *data, uint32_t *size)

{

	struct smu_table_context *table_context = &smu->smu_table;

	PPTable_t *pptable = table_context->driver_pptable;

	int ret = 0;



	switch (sensor) {

	case AMDGPU_PP_SENSOR_MAX_FAN_RPM:

		*(uint32_t *)data = pptable->FanMaximumRpm;

		*size = 4;

		break;

	case AMDGPU_PP_SENSOR_MEM_LOAD:

	case AMDGPU_PP_SENSOR_GPU_LOAD:

		ret = arcturus_get_current_activity_percent(smu,

							    sensor,

						(uint32_t *)data);

		*size = 4;

		break;

	case AMDGPU_PP_SENSOR_GPU_POWER:

		ret = arcturus_get_gpu_power(smu, (uint32_t *)data);

		*size = 4;

		break;

	case AMDGPU_PP_SENSOR_HOTSPOT_TEMP:

	case AMDGPU_PP_SENSOR_EDGE_TEMP:

	case AMDGPU_PP_SENSOR_MEM_TEMP:

		ret = arcturus_thermal_get_temperature(smu, sensor,

						(uint32_t *)data);

		*size = 4;

		break;

	default:

		return -EINVAL;

	}



	return ret;

}



static void arcturus_dump_pptable(struct smu_context *smu)

{

	struct smu_table_context *table_context = &smu->smu_table;
@@ -1309,6 +1450,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = { 
	.get_thermal_temperature_range = arcturus_get_thermal_temperature_range,

	.print_clk_levels = arcturus_print_clk_levels,

	.force_clk_levels = arcturus_force_clk_levels,

	.read_sensor = arcturus_read_sensor,

	/* debug (internal used) */

	.dump_pptable = arcturus_dump_pptable,

};