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drm/amdgpu: add the fan abnormal detection feature 

Update the SW CTF limit from existing register
when there's a fan failure detected via SMU interrupt.

Signed-off-by: lyndonli <Lyndon.Li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
lyndonli 2022-11-21 09:10:20 +08:00 committed by Alex Deucher
parent 1ec13219a1
commit ef5fca9f72
3 changed files with 30 additions and 0 deletions
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1
drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
View File

@ -168,6 +168,7 @@ struct smu_temperature_range {
int mem_crit_max;
int mem_emergency_max;
int software_shutdown_temp;
int software_shutdown_temp_offset;
};
struct smu_state_validation_block {

28
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
View File

@ -1376,6 +1376,7 @@ static int smu_v13_0_irq_process(struct amdgpu_device *adev,
*/
uint32_t ctxid = entry->src_data[0];
uint32_t data;
uint32_t high;
if (client_id == SOC15_IH_CLIENTID_THM) {
switch (src_id) {
@ -1432,6 +1433,33 @@ static int smu_v13_0_irq_process(struct amdgpu_device *adev,
schedule_work(&smu->throttling_logging_work);
break;
case 0x8:
high = smu->thermal_range.software_shutdown_temp +
smu->thermal_range.software_shutdown_temp_offset;
high = min(SMU_THERMAL_MAXIMUM_ALERT_TEMP, high);
dev_emerg(adev->dev, "Reduce soft CTF limit to %d (by an offset %d)\n",
high,
smu->thermal_range.software_shutdown_temp_offset);
data = RREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL);
data = REG_SET_FIELD(data, THM_THERMAL_INT_CTRL,
DIG_THERM_INTH,
(high & 0xff));
data = data & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK);
WREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL, data);
break;
case 0x9:
high = min(SMU_THERMAL_MAXIMUM_ALERT_TEMP,
smu->thermal_range.software_shutdown_temp);
dev_emerg(adev->dev, "Recover soft CTF limit to %d\n", high);
data = RREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL);
data = REG_SET_FIELD(data, THM_THERMAL_INT_CTRL,
DIG_THERM_INTH,
(high & 0xff));
data = data & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK);
WREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL, data);
break;
}
}
}

1
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
View File

@ -1223,6 +1223,7 @@ static int smu_v13_0_7_get_thermal_temperature_range(struct smu_context *smu,
range->mem_emergency_max = (pptable->SkuTable.TemperatureLimit[TEMP_MEM] + CTF_OFFSET_MEM)*
SMU_TEMPERATURE_UNITS_PER_CENTIGRADES;
range->software_shutdown_temp = powerplay_table->software_shutdown_temp;
range->software_shutdown_temp_offset = pptable->SkuTable.FanAbnormalTempLimitOffset;
return 0;
}