From ca3d28de6268e75739f0c5d40ec6010b1d84f03a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 13 Oct 2016 10:08:00 -0400 Subject: [PATCH] drm/amdgpu/powerplay: implement thermal sensor for CZ/ST Add missing functionality. Reviewed-by: Tom St Denis Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c index 7e4fcbb..9604249 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c @@ -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; } -- 2.7.4