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Commit ca3d28de authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/powerplay: implement thermal sensor for CZ/ST 



Add missing functionality.

Reviewed-by: default avatarTom St Denis <tom.stdenis@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3e96dbfd

drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c

+18 −0
Original line number Diff line number Diff line
@@ -1785,6 +1785,21 @@ static int cz_get_max_high_clocks(struct pp_hwmgr *hwmgr, struct amd_pp_simple_c 
	return 0;

}



static int cz_thermal_get_temperature(struct pp_hwmgr *hwmgr)

{

	int actual_temp = 0;

	uint32_t val = cgs_read_ind_register(hwmgr->device,

					     CGS_IND_REG__SMC, ixTHM_TCON_CUR_TMP);

	uint32_t temp = PHM_GET_FIELD(val, THM_TCON_CUR_TMP, CUR_TEMP);



	if (PHM_GET_FIELD(val, THM_TCON_CUR_TMP, CUR_TEMP_RANGE_SEL))

		actual_temp = ((temp / 8) - 49) * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;

	else

		actual_temp = (temp / 8) * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;



	return actual_temp;

}



static int cz_read_sensor(struct pp_hwmgr *hwmgr, int idx, int32_t *value)

{

	struct cz_hwmgr *cz_hwmgr = (struct cz_hwmgr *)(hwmgr->backend);
@@ -1881,6 +1896,9 @@ static int cz_read_sensor(struct pp_hwmgr *hwmgr, int idx, int32_t *value) 
	case AMDGPU_PP_SENSOR_VCE_POWER:

		*value = cz_hwmgr->vce_power_gated ? 0 : 1;

		return 0;

	case AMDGPU_PP_SENSOR_GPU_TEMP:

		*value = cz_thermal_get_temperature(hwmgr);

		return 0;

	default:

		return -EINVAL;

	}