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drm/amd/powerplay: support sensor reading on arcturus 

Support sensor reading for gpu loading, power and
temperatures.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2019-07-29 13:18:37 -05:00 committed by Alex Deucher
parent 832a7062a0
commit ba74c8bf88
1 changed files with 142 additions and 0 deletions
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142
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
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@ -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,
};