[PATCH] AMDGPU: Correctly initialize thermal controller for GPUs with Powerplay table v0 (e.g Hawaii)

[Sandeep]

Hello,

Can someone please look at this patch? It would be nice to get it
merged in, so that others using the Hawaii GPU can get proper fan
speeds reported. Thanks in advance.

Yours sincerely,
Sandeep

On Sun, 5 Apr 2020 at 22:22, Sandeep <sandy.8925 at gmail.com> wrote:
>
> This is required for the AMDGPU driver to report fan speed for Hawaii
> GPUs (otherwise the fan speed is just reported as 0)
> ---
>  .../drm/amd/powerplay/hwmgr/processpptables.c | 28 +++++++++++++++++++
>  1 file changed, 28 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
> b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
> index 77c14671866c..bb58cfab1033 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
> @@ -984,6 +984,34 @@ static int init_thermal_controller(
>   struct pp_hwmgr *hwmgr,
>   const ATOM_PPLIB_POWERPLAYTABLE *powerplay_table)
>  {
> + hwmgr->thermal_controller.ucType =
> + powerplay_table->sThermalController.ucType;
> + hwmgr->thermal_controller.ucI2cLine =
> + powerplay_table->sThermalController.ucI2cLine;
> + hwmgr->thermal_controller.ucI2cAddress =
> + powerplay_table->sThermalController.ucI2cAddress;
> +
> + hwmgr->thermal_controller.fanInfo.bNoFan =
> + (0 != (powerplay_table->sThermalController.ucFanParameters &
> + ATOM_PP_FANPARAMETERS_NOFAN));
> +
> + hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution =
> + powerplay_table->sThermalController.ucFanParameters &
> + ATOM_PP_FANPARAMETERS_TACHOMETER_PULSES_PER_REVOLUTION_MASK;
> +
> + hwmgr->thermal_controller.fanInfo.ulMinRPM
> + = powerplay_table->sThermalController.ucFanMinRPM * 100UL;
> + hwmgr->thermal_controller.fanInfo.ulMaxRPM
> + = powerplay_table->sThermalController.ucFanMaxRPM * 100UL;
> +
> + set_hw_cap(
> + hwmgr,
> + ATOM_PP_THERMALCONTROLLER_NONE != hwmgr->thermal_controller.ucType,
> + PHM_PlatformCaps_ThermalController
> +   );
> +
> + hwmgr->thermal_controller.use_hw_fan_control = 1;
> +
>   return 0;
>  }
>
> --