From: Luciano Coelho <[email protected]> Since we can't read the actual temperature when the firmware is running, just set the temperature to 0 when the test is disabled and disable CT Kill if it was enabled.
Additionally, since we rely on iwl_mvm_tt_handler() to exit CT kill when in test mode, call iwl_mvm_exit_ctkill() in that function if the temperature is low again. Also make the iwl_mvm_enter_ctkill() and iwl_mvm_exit_ctkill() return if called when not necessary anymore (e.g. when iwl_mvm_exit_ctkill() is called when we're not in CT-kill). Signed-off-by: Luciano Coelho <[email protected]> Reviewed-by: Johannes Berg <[email protected]> Signed-off-by: Emmanuel Grumbach <[email protected]> --- drivers/net/wireless/iwlwifi/mvm/debugfs.c | 10 ++++++++++ drivers/net/wireless/iwlwifi/mvm/tt.c | 12 ++++++++++++ 2 files changed, 22 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index f7e4488..83e562b 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -296,7 +296,15 @@ static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, mutex_lock(&mvm->mutex); if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) { + if (!mvm->temperature_test) + goto out; + mvm->temperature_test = false; + /* Since we can't read the temp while awake, just set + * it to zero until we get the next RX stats from the + * firmware. + */ + mvm->temperature = 0; } else { mvm->temperature_test = true; mvm->temperature = temperature; @@ -306,6 +314,8 @@ static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, mvm->temperature); /* handle the temperature change */ iwl_mvm_tt_handler(mvm); + +out: mutex_unlock(&mvm->mutex); return count; diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c index 0464599..d31603c 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tt.c +++ b/drivers/net/wireless/iwlwifi/mvm/tt.c @@ -314,6 +314,9 @@ static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm) { u32 duration = mvm->thermal_throttle.params->ct_kill_duration; + if (test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) + return; + IWL_ERR(mvm, "Enter CT Kill\n"); iwl_mvm_set_hw_ctkill_state(mvm, true); schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit, @@ -322,6 +325,9 @@ static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm) static void iwl_mvm_exit_ctkill(struct iwl_mvm *mvm) { + if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) + return; + IWL_ERR(mvm, "Exit CT Kill\n"); iwl_mvm_set_hw_ctkill_state(mvm, false); } @@ -444,6 +450,12 @@ void iwl_mvm_tt_handler(struct iwl_mvm *mvm) return; } + if (params->support_ct_kill && + temperature <= tt->params->ct_kill_exit) { + iwl_mvm_exit_ctkill(mvm); + return; + } + if (params->support_dynamic_smps) { if (!tt->dynamic_smps && temperature >= params->dynamic_smps_entry) { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
