drm/amd/powerplay: Setup sw CTF to allow graceful exit when temperature exceeds maximum.

cherry-pick from amd windows driver.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c
index 5da88ba4a53c94a9d522b7d57397b724117b44e5..d5f53d04fa08c30a4053aa9fd07b04c795177e4e 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c
@@ -381,14 +381,10 @@ int vega10_thermal_get_temperature(struct pp_hwmgr *hwmgr)
 
        temp = cgs_read_register(hwmgr->device, reg);
 
-       temp = (temp & CG_MULT_THERMAL_STATUS__CTF_TEMP_MASK) >>
-                       CG_MULT_THERMAL_STATUS__CTF_TEMP__SHIFT;
+       temp = (temp & CG_MULT_THERMAL_STATUS__ASIC_MAX_TEMP_MASK) >>
+                       CG_MULT_THERMAL_STATUS__ASIC_MAX_TEMP__SHIFT;
 
-       /* Bit 9 means the reading is lower than the lowest usable value. */
-       if (temp & 0x200)
-               temp = VEGA10_THERMAL_MAXIMUM_TEMP_READING;
-       else
-               temp = temp & 0x1ff;
+       temp = temp & 0x1ff;
 
        temp *= PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
 
@@ -424,23 +420,28 @@ static int vega10_thermal_set_temperature_range(struct pp_hwmgr *hwmgr,
                        mmTHM_THERMAL_INT_CTRL_BASE_IDX, mmTHM_THERMAL_INT_CTRL);
 
        val = cgs_read_register(hwmgr->device, reg);
-       val &= ~(THM_THERMAL_INT_CTRL__DIG_THERM_INTH_MASK);
-       val |= (high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES) <<
-                       THM_THERMAL_INT_CTRL__DIG_THERM_INTH__SHIFT;
-       val &= ~(THM_THERMAL_INT_CTRL__DIG_THERM_INTL_MASK);
-       val |= (low / PP_TEMPERATURE_UNITS_PER_CENTIGRADES) <<
-                       THM_THERMAL_INT_CTRL__DIG_THERM_INTL__SHIFT;
+
+       val &= (~THM_THERMAL_INT_CTRL__MAX_IH_CREDIT_MASK);
+       val |=  (5 << THM_THERMAL_INT_CTRL__MAX_IH_CREDIT__SHIFT);
+
+       val &= (~THM_THERMAL_INT_CTRL__THERM_IH_HW_ENA_MASK);
+       val |= (1 << THM_THERMAL_INT_CTRL__THERM_IH_HW_ENA__SHIFT);
+
+       val &= (~THM_THERMAL_INT_CTRL__DIG_THERM_INTH_MASK);
+       val |= ((high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)
+                       << THM_THERMAL_INT_CTRL__DIG_THERM_INTH__SHIFT);
+
+       val &= (~THM_THERMAL_INT_CTRL__DIG_THERM_INTL_MASK);
+       val |= ((low / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)
+                       << THM_THERMAL_INT_CTRL__DIG_THERM_INTL__SHIFT);
+
+       val = val & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK);
+
        cgs_write_register(hwmgr->device, reg, val);
 
        reg = soc15_get_register_offset(THM_HWID, 0,
                        mmTHM_TCON_HTC_BASE_IDX, mmTHM_TCON_HTC);
 
-       val = cgs_read_register(hwmgr->device, reg);
-       val &= ~(THM_TCON_HTC__HTC_TMP_LMT_MASK);
-       val |= (high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES) <<
-                       THM_TCON_HTC__HTC_TMP_LMT__SHIFT;
-       cgs_write_register(hwmgr->device, reg, val);
-
        return 0;
 }
 
@@ -482,18 +483,28 @@ static int vega10_thermal_initialize(struct pp_hwmgr *hwmgr)
 static int vega10_thermal_enable_alert(struct pp_hwmgr *hwmgr)
 {
        struct vega10_hwmgr *data = (struct vega10_hwmgr *)(hwmgr->backend);
+       uint32_t val = 0;
+       uint32_t reg;
 
        if (data->smu_features[GNLD_FW_CTF].supported) {
                if (data->smu_features[GNLD_FW_CTF].enabled)
                        printk("[Thermal_EnableAlert] FW CTF Already Enabled!\n");
+
+               PP_ASSERT_WITH_CODE(!vega10_enable_smc_features(hwmgr->smumgr,
+                               true,
+                               data->smu_features[GNLD_FW_CTF].smu_feature_bitmap),
+                               "Attempt to Enable FW CTF feature Failed!",
+                               return -1);
+               data->smu_features[GNLD_FW_CTF].enabled = true;
        }
 
-       PP_ASSERT_WITH_CODE(!vega10_enable_smc_features(hwmgr->smumgr,
-                       true,
-                       data->smu_features[GNLD_FW_CTF].smu_feature_bitmap),
-                       "Attempt to Enable FW CTF feature Failed!",
-                       return -1);
-       data->smu_features[GNLD_FW_CTF].enabled = true;
+       val |= (1 << THM_THERMAL_INT_ENA__THERM_INTH_CLR__SHIFT);
+       val |= (1 << THM_THERMAL_INT_ENA__THERM_INTL_CLR__SHIFT);
+       val |= (1 << THM_THERMAL_INT_ENA__THERM_TRIGGER_CLR__SHIFT);
+
+       reg = soc15_get_register_offset(THM_HWID, 0, mmTHM_THERMAL_INT_ENA_BASE_IDX, mmTHM_THERMAL_INT_ENA);
+       cgs_write_register(hwmgr->device, reg, val);
+
        return 0;
 }
 
@@ -504,18 +515,24 @@ static int vega10_thermal_enable_alert(struct pp_hwmgr *hwmgr)
 int vega10_thermal_disable_alert(struct pp_hwmgr *hwmgr)
 {
        struct vega10_hwmgr *data = (struct vega10_hwmgr *)(hwmgr->backend);
+       uint32_t reg;
 
        if (data->smu_features[GNLD_FW_CTF].supported) {
                if (!data->smu_features[GNLD_FW_CTF].enabled)
                        printk("[Thermal_EnableAlert] FW CTF Already disabled!\n");
-       }
 
-       PP_ASSERT_WITH_CODE(!vega10_enable_smc_features(hwmgr->smumgr,
+
+               PP_ASSERT_WITH_CODE(!vega10_enable_smc_features(hwmgr->smumgr,
                        false,
                        data->smu_features[GNLD_FW_CTF].smu_feature_bitmap),
                        "Attempt to disable FW CTF feature Failed!",
                        return -1);
-       data->smu_features[GNLD_FW_CTF].enabled = false;
+               data->smu_features[GNLD_FW_CTF].enabled = false;
+       }
+
+       reg = soc15_get_register_offset(THM_HWID, 0, mmTHM_THERMAL_INT_ENA_BASE_IDX, mmTHM_THERMAL_INT_ENA);
+       cgs_write_register(hwmgr->device, reg, 0);
+
        return 0;
 }