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From d75d1074d81030fb1d0ba996d182e6e11c7d9894 Mon Sep 17 00:00:00 2001
From: Kevin Wang <kevin1.wang@amd.com>
Date: Thu, 4 Jul 2019 10:56:18 +0800
Subject: [PATCH 2829/2940] drm/amd/powerplay: add temperature sensor support
for navi10
the hwmon interface need temperature sensor type support.
1. SENSOR_HOTSPOT_TEMP
2. SENSOR_EDGE_TEMP(SENSOR_GPU_TEMP)
3. SENSOR_MEM_TEMP
Change-Id: I9b518a7a2b6ab04dfeb5ce03c915edad2a7fdd6c
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 41 ++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 7574a02350c6..9bb06591bed7 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -1255,6 +1255,41 @@ static int navi10_set_watermarks_table(struct smu_context *smu,
return 0;
}
+static int navi10_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 = smu_update_table(smu, SMU_TABLE_SMU_METRICS, (void *)&metrics, false);
+ 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.TemperatureMem *
+ SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
+ break;
+ default:
+ pr_err("Invalid sensor for retrieving temp\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int navi10_read_sensor(struct smu_context *smu,
enum amd_pp_sensors sensor,
void *data, uint32_t *size)
@@ -1276,6 +1311,12 @@ static int navi10_read_sensor(struct smu_context *smu,
ret = navi10_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 = navi10_thermal_get_temperature(smu, sensor, (uint32_t *)data);
+ *size = 4;
+ break;
default:
return -EINVAL;
}
--
2.17.1
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