add sensor interface of get gpu temperature for debugfs.

Change-Id: I2499b6652fad6d5d776b6ed4cd5157636583ed39
Signed-off-by: Xiaomeng Hou <[email protected]>
---
 drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c 
b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index 3788047bd704..3f6f0ebf1fbe 100644
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -429,6 +429,24 @@ static int renoir_get_gpu_power(struct smu_context *smu, 
uint32_t *value)
        return 0;
 }
 
+static int renoir_get_gpu_temperature(struct smu_context *smu, uint32_t *value)
+{
+       int ret = 0;
+       SmuMetrics_t metrics;
+
+       if (!value)
+               return -EINVAL;
+
+       ret = renoir_get_metrics_table(smu, &metrics);
+       if (ret)
+               return ret;
+
+       *value = (metrics.GfxTemperature / 100) *
+               SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
+
+       return 0;
+}
+
 static int renoir_get_current_activity_percent(struct smu_context *smu,
                                               enum amd_pp_sensors sensor,
                                               uint32_t *value)
@@ -787,6 +805,10 @@ static int renoir_read_sensor(struct smu_context *smu,
                ret = renoir_get_gpu_power(smu, (uint32_t *)data);
                *size = 4;
                break;
+       case AMDGPU_PP_SENSOR_GPU_TEMP:
+               ret = renoir_get_gpu_temperature(smu, (uint32_t *)data);
+               *size = 4;
+               break;
        default:
                ret = smu_v12_0_read_sensor(smu, sensor, data, size);
        }
-- 
2.24.0

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