Re: [PATCH v2] drm/amd/pm: Fix critical temp unit of SMU v13.0.6

["Lazar, Lijo" <lijo.lazar@amd.com>]

On 8/18/2023 4:30 PM, Asad Kamal wrote:
> Critical Temperature needs to be reported in
> millidegree Celsius.
> 
> Signed-off-by: Asad Kamal <asad.kamal@amd.com>

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>

Thanks,
Lijo

> ---
>   drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c | 9 +++++----
>   1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
> index 7d8af9b309b7..d3b578e6bc2a 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
> @@ -2086,7 +2086,7 @@ static int smu_v13_0_6_get_thermal_temperature_range(struct smu_context *smu,
>   						     struct smu_temperature_range *range)
>   {
>   	struct amdgpu_device *adev = smu->adev;
> -	u32 aid_temp, xcd_temp;
> +	u32 aid_temp, xcd_temp, mem_temp;
>   	uint32_t smu_version;
>   	u32 ccd_temp = 0;
>   	int ret;
> @@ -2119,13 +2119,14 @@ static int smu_v13_0_6_get_thermal_temperature_range(struct smu_context *smu,
>   	if (ret)
>   		goto failed;
>   
> -	range->hotspot_crit_max = max3(aid_temp, xcd_temp, ccd_temp);
> +	range->hotspot_crit_max = max3(aid_temp, xcd_temp, ccd_temp) *
> +				       SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
>   	ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_GetCTFLimit,
> -					      PPSMC_HBM_THM_TYPE, &range->mem_crit_max);
> +					      PPSMC_HBM_THM_TYPE, &mem_temp);
>   	if (ret)
>   		goto failed;
>   
> -	return 0;
> +	range->mem_crit_max = mem_temp * SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
>   failed:
>   	return ret;
>   }