drm/amd/pp: Implement AMDGPU_PP_SENSOR_MIN/MAX_FAN_RPM

so user can query the RPM range

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 32f475e37051..053c485baed0 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -813,6 +813,12 @@ static int pp_dpm_read_sensor(void *handle, int idx,
         case AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK:
                 *((uint32_t *)value) = hwmgr->pstate_mclk;
                 return 0;
+        case AMDGPU_PP_SENSOR_MIN_FAN_RPM:
+                *((uint32_t *)value) = hwmgr->thermal_controller.fanInfo.ulMinRPM;
+                return 0;
+        case AMDGPU_PP_SENSOR_MAX_FAN_RPM:
+                *((uint32_t *)value) = hwmgr->thermal_controller.fanInfo.ulMaxRPM;
+                return 0;
         default:
                 mutex_lock(&hwmgr->smu_lock);
                 ret = hwmgr->hwmgr_func->read_sensor(hwmgr, idx, value, size);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
index 5f1f7a32ac24..c9b93e6487e4 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
@@ -834,6 +834,8 @@ static int init_powerplay_table_information(
 
         hwmgr->thermal_controller.ucType = powerplay_table->ucThermalControllerType;
         pptable_information->uc_thermal_controller_type = powerplay_table->ucThermalControllerType;
+        hwmgr->thermal_controller.fanInfo.ulMinRPM = 0;
+        hwmgr->thermal_controller.fanInfo.ulMaxRPM = powerplay_table->smcPPTable.FanMaximumRpm;
 
         set_hw_cap(hwmgr,
                 ATOM_VEGA20_PP_THERMALCONTROLLER_NONE != hwmgr->thermal_controller.ucType,