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

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Add missing functionality.

Reviewed-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-10-13 10:08:00 -04:00
parent 3e96dbfd58
commit ca3d28de62
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
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@ -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;
}