[PATCH] drm/amd/powerplay: set max fan target temperature as 105C

[Deucher, Alexander]

Acked-by: Alex Deucher <alexander.deucher at amd.com>

> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Evan
> Quan
> Sent: Monday, February 25, 2019 2:07 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: Quan, Evan <Evan.Quan at amd.com>
> Subject: [PATCH] drm/amd/powerplay: set max fan target temperature as
> 105C
> 
> A workaround to override the fan target temperature in SMC table.
> 
> Change-Id: I67845c2fe5f51abde1ac483a979bde43ce2f26d3
> Signed-off-by: Evan Quan <evan.quan at amd.com>
> ---
>  .../powerplay/hwmgr/vega20_processpptables.c    | 17
> +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git
> a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
> b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
> index 97f8a1a970c3..7a7f15d0c53a 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_processpptables.c
> @@ -32,6 +32,8 @@
>  #include "cgs_common.h"
>  #include "vega20_pptable.h"
> 
> +#define VEGA20_FAN_TARGET_TEMPERATURE_OVERRIDE 105
> +
>  static void set_hw_cap(struct pp_hwmgr *hwmgr, bool enable,
>  		enum phm_platform_caps cap)
>  {
> @@ -798,6 +800,17 @@ static int append_vbios_pptable(struct pp_hwmgr
> *hwmgr, PPTable_t *ppsmc_pptable
>  	return 0;
>  }
> 
> +static int override_powerplay_table_fantargettemperature(struct
> +pp_hwmgr *hwmgr) {
> +	struct phm_ppt_v3_information *pptable_information =
> +		(struct phm_ppt_v3_information *)hwmgr->pptable;
> +	PPTable_t *ppsmc_pptable = (PPTable_t
> +*)(pptable_information->smc_pptable);
> +
> +	ppsmc_pptable->FanTargetTemperature =
> +VEGA20_FAN_TARGET_TEMPERATURE_OVERRIDE;
> +
> +	return 0;
> +}
> +
>  #define VEGA20_ENGINECLOCK_HARDMAX 198000  static int
> init_powerplay_table_information(
>  		struct pp_hwmgr *hwmgr,
> @@ -887,6 +900,10 @@ static int init_powerplay_table_information(
> 
> 
>  	result = append_vbios_pptable(hwmgr, (pptable_information-
> >smc_pptable));
> +	if (result)
> +		return result;
> +
> +	result = override_powerplay_table_fantargettemperature(hwmgr);
> 
>  	return result;
>  }
> --
> 2.20.1
> 
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