1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
3  * Copyright (C) 2012-2014, 2019-2022, 2024-2025 Intel Corporation
4  * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
5  * Copyright (C) 2015-2016 Intel Deutschland GmbH
20 	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;  in iwl_mvm_enter_ctkill()
21 	u32 duration = tt->params.ct_kill_duration;  in iwl_mvm_enter_ctkill()
23 	if (test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status))  in iwl_mvm_enter_ctkill()
30 		tt->throttle = false;  in iwl_mvm_enter_ctkill()
31 		tt->dynamic_smps = false;  in iwl_mvm_enter_ctkill()
38 	if (!mvm->temperature_test)  in iwl_mvm_enter_ctkill()
39 		schedule_delayed_work(&tt->ct_kill_exit,  in iwl_mvm_enter_ctkill()
45 	if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status))  in iwl_mvm_exit_ctkill()
55 	if (mvm->temperature_test)  in iwl_mvm_tt_temp_changed()
58 	if (mvm->temperature == temp)  in iwl_mvm_tt_temp_changed()
61 	mvm->temperature = temp;  in iwl_mvm_tt_temp_changed()
77 		return -EINVAL;  in iwl_mvm_temp_notif_parse()
80 	notif_v1 = (void *)pkt->data;  in iwl_mvm_temp_notif_parse()
82 	temp = le32_to_cpu(notif_v1->temp);  in iwl_mvm_temp_notif_parse()
88 	IWL_DEBUG_TEMP(mvm, "DTS_MEASUREMENT_NOTIFICATION - %d\n", temp);  in iwl_mvm_temp_notif_parse()
119 	if (test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status))  in iwl_mvm_temp_notif()
135 	notif_v2 = (void *)pkt->data;  in iwl_mvm_temp_notif()
136 	ths_crossed = le32_to_cpu(notif_v2->threshold_idx);  in iwl_mvm_temp_notif()
151 	if (mvm->tz_device.tzone) {  in iwl_mvm_temp_notif()
152 		struct iwl_mvm_thermal_device *tz_dev = &mvm->tz_device;  in iwl_mvm_temp_notif()
154 		thermal_zone_device_update(tz_dev->tzone,  in iwl_mvm_temp_notif()
165 	notif = (struct ct_kill_notif *)pkt->data;  in iwl_mvm_ct_kill_notif()
167 		       notif->temperature);  in iwl_mvm_ct_kill_notif()
168 	if (iwl_fw_lookup_notif_ver(mvm->fw, PHY_OPS_GROUP,  in iwl_mvm_ct_kill_notif()
172 			       notif->dts, notif->scheme);  in iwl_mvm_ct_kill_notif()
197 	if (fw_has_capa(&mvm->fw->ucode_capa,  in iwl_mvm_send_temp_cmd()
217 		       "Sending temperature measurement command - %s response\n",  in iwl_mvm_send_temp_cmd()
229 		resp = (void *)cmd.resp_pkt->data;  in iwl_mvm_send_temp_cmd()
230 		*temp = le32_to_cpu(resp->temp);  in iwl_mvm_send_temp_cmd()
253 	cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,  in iwl_mvm_get_temp()
259 	lockdep_assert_held(&mvm->mutex);  in iwl_mvm_get_temp()
261 	iwl_init_notification_wait(&mvm->notif_wait, &wait_temp_notif,  in iwl_mvm_get_temp()
267 		iwl_remove_notification(&mvm->notif_wait, &wait_temp_notif);  in iwl_mvm_get_temp()
271 	ret = iwl_wait_notification(&mvm->notif_wait, &wait_temp_notif,  in iwl_mvm_get_temp()
296 	duration = tt->params.ct_kill_duration;  in check_exit_ctkill()
298 	flush_work(&mvm->roc_done_wk);  in check_exit_ctkill()
300 	mutex_lock(&mvm->mutex);  in check_exit_ctkill()
314 	if (temp <= tt->params.ct_kill_exit) {  in check_exit_ctkill()
315 		mutex_unlock(&mvm->mutex);  in check_exit_ctkill()
321 	mutex_unlock(&mvm->mutex);  in check_exit_ctkill()
322 	schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit,  in check_exit_ctkill()
332 	lockdep_assert_held(&mvm->mutex);  in iwl_mvm_tt_smps_iterator()
334 	if (mvm->thermal_throttle.dynamic_smps)  in iwl_mvm_tt_smps_iterator()
339 	if (vif->type != NL80211_IFTYPE_STATION)  in iwl_mvm_tt_smps_iterator()
350 	for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {  in iwl_mvm_tt_tx_protection()
355 		if (enable == mvmsta->tt_tx_protection)  in iwl_mvm_tt_tx_protection()
364 			mvmsta->tt_tx_protection = enable;  in iwl_mvm_tt_tx_protection()
377 	backoff = max(backoff, mvm->thermal_throttle.min_backoff);  in iwl_mvm_tt_tx_backoff()
382 		mvm->thermal_throttle.tx_backoff = backoff;  in iwl_mvm_tt_tx_backoff()
390 	struct iwl_tt_params *params = &mvm->thermal_throttle.params;  in iwl_mvm_tt_handler()
391 	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;  in iwl_mvm_tt_handler()
392 	s32 temperature = mvm->temperature;  in iwl_mvm_tt_handler()
397 	IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", mvm->temperature);  in iwl_mvm_tt_handler()
399 	if (params->support_ct_kill && temperature >= params->ct_kill_entry) {  in iwl_mvm_tt_handler()
404 	if (params->support_ct_kill &&  in iwl_mvm_tt_handler()
405 	    temperature <= params->ct_kill_exit) {  in iwl_mvm_tt_handler()
410 	if (params->support_dynamic_smps) {  in iwl_mvm_tt_handler()
411 		if (!tt->dynamic_smps &&  in iwl_mvm_tt_handler()
412 		    temperature >= params->dynamic_smps_entry) {  in iwl_mvm_tt_handler()
414 			tt->dynamic_smps = true;  in iwl_mvm_tt_handler()
416 					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,  in iwl_mvm_tt_handler()
419 		} else if (tt->dynamic_smps &&  in iwl_mvm_tt_handler()
420 			   temperature <= params->dynamic_smps_exit) {  in iwl_mvm_tt_handler()
422 			tt->dynamic_smps = false;  in iwl_mvm_tt_handler()
424 					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,  in iwl_mvm_tt_handler()
429 	if (params->support_tx_protection) {  in iwl_mvm_tt_handler()
430 		if (temperature >= params->tx_protection_entry) {  in iwl_mvm_tt_handler()
433 		} else if (temperature <= params->tx_protection_exit) {  in iwl_mvm_tt_handler()
438 	if (params->support_tx_backoff) {  in iwl_mvm_tt_handler()
439 		tx_backoff = tt->min_backoff;  in iwl_mvm_tt_handler()
441 			if (temperature < params->tx_backoff[i].temperature)  in iwl_mvm_tt_handler()
443 			tx_backoff = max(tt->min_backoff,  in iwl_mvm_tt_handler()
444 					 params->tx_backoff[i].backoff);  in iwl_mvm_tt_handler()
446 		if (tx_backoff != tt->min_backoff)  in iwl_mvm_tt_handler()
448 		if (tt->tx_backoff != tx_backoff)  in iwl_mvm_tt_handler()
452 	if (!tt->throttle && throttle_enable) {  in iwl_mvm_tt_handler()
455 		tt->throttle = true;  in iwl_mvm_tt_handler()
456 	} else if (tt->throttle && !tt->dynamic_smps &&  in iwl_mvm_tt_handler()
457 		   tt->tx_backoff == tt->min_backoff &&  in iwl_mvm_tt_handler()
458 		   temperature <= params->tx_protection_exit) {  in iwl_mvm_tt_handler()
461 		tt->throttle = false;  in iwl_mvm_tt_handler()
497 	lockdep_assert_held(&mvm->mutex);  in iwl_mvm_ctdp_command()
502 	budget = ((mvm->thermal_throttle.power_budget_mw -  in iwl_mvm_ctdp_command()
504 		  (IWL_MVM_NUM_CTDP_STEPS - 1 - state)) /  in iwl_mvm_ctdp_command()
505 		 (IWL_MVM_NUM_CTDP_STEPS - 1) +  in iwl_mvm_ctdp_command()
522 		mvm->cooling_dev.cur_state = state;  in iwl_mvm_ctdp_command()
545 	return ((s16)le16_to_cpu(*(const __le16 *)a) -  in compare_temps()
558 	if (trip->temperature == THERMAL_TEMP_INVALID)  in iwl_trip_temp_cb()
561 	twd->thresholds[twd->count++] = cpu_to_le16((s16)(trip->temperature / 1000));  in iwl_trip_temp_cb()
573 	lockdep_assert_held(&mvm->mutex);  in iwl_mvm_send_temp_report_ths_cmd()
575 	if (!mvm->tz_device.tzone)  in iwl_mvm_send_temp_report_ths_cmd()
585 	for_each_thermal_trip(mvm->tz_device.tzone, iwl_trip_temp_cb, &twd);  in iwl_mvm_send_temp_report_ths_cmd()
604 static int iwl_mvm_tzone_get_temp(struct thermal_zone_device *device,  in iwl_mvm_tzone_get_temp()  argument
607 	struct iwl_mvm *mvm = thermal_zone_device_priv(device);  in iwl_mvm_tzone_get_temp()
614 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) {  in iwl_mvm_tzone_get_temp()
631 static int iwl_mvm_tzone_set_trip_temp(struct thermal_zone_device *device,  in iwl_mvm_tzone_set_trip_temp()  argument
634 	struct iwl_mvm *mvm = thermal_zone_device_priv(device);  in iwl_mvm_tzone_set_trip_temp()
639 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)  in iwl_mvm_tzone_set_trip_temp()
640 		return -EIO;  in iwl_mvm_tzone_set_trip_temp()
643 		return -EINVAL;  in iwl_mvm_tzone_set_trip_temp()
660 		mvm->tz_device.tzone = NULL;  in iwl_mvm_thermal_zone_register()
673 		mvm->tz_device.trips[i].temperature = THERMAL_TEMP_INVALID;  in iwl_mvm_thermal_zone_register()
674 		mvm->tz_device.trips[i].type = THERMAL_TRIP_PASSIVE;  in iwl_mvm_thermal_zone_register()
675 		mvm->tz_device.trips[i].flags = THERMAL_TRIP_FLAG_RW_TEMP;  in iwl_mvm_thermal_zone_register()
677 	mvm->tz_device.tzone = thermal_zone_device_register_with_trips(name,  in iwl_mvm_thermal_zone_register()
678 							mvm->tz_device.trips,  in iwl_mvm_thermal_zone_register()
682 	if (IS_ERR(mvm->tz_device.tzone)) {  in iwl_mvm_thermal_zone_register()
685 			       PTR_ERR(mvm->tz_device.tzone));  in iwl_mvm_thermal_zone_register()
686 		mvm->tz_device.tzone = NULL;  in iwl_mvm_thermal_zone_register()
690 	ret = thermal_zone_device_enable(mvm->tz_device.tzone);  in iwl_mvm_thermal_zone_register()
693 		thermal_zone_device_unregister(mvm->tz_device.tzone);  in iwl_mvm_thermal_zone_register()
700 	*state = IWL_MVM_NUM_CTDP_STEPS - 1;  in iwl_mvm_tcool_get_max_state()
708 	struct iwl_mvm *mvm = (struct iwl_mvm *)(cdev->devdata);  in iwl_mvm_tcool_get_cur_state()
710 	*state = mvm->cooling_dev.cur_state;  in iwl_mvm_tcool_get_cur_state()
718 	struct iwl_mvm *mvm = (struct iwl_mvm *)(cdev->devdata);  in iwl_mvm_tcool_set_cur_state()
723 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)  in iwl_mvm_tcool_set_cur_state()
724 		return -EIO;  in iwl_mvm_tcool_set_cur_state()
727 		return -EINVAL;  in iwl_mvm_tcool_set_cur_state()
748 	mvm->cooling_dev.cdev =  in iwl_mvm_cooling_device_register()
753 	if (IS_ERR(mvm->cooling_dev.cdev)) {  in iwl_mvm_cooling_device_register()
755 			       "Failed to register to cooling device (err = %ld)\n",  in iwl_mvm_cooling_device_register()
756 			       PTR_ERR(mvm->cooling_dev.cdev));  in iwl_mvm_cooling_device_register()
757 		mvm->cooling_dev.cdev = NULL;  in iwl_mvm_cooling_device_register()
764 	if (!iwl_mvm_is_tt_in_fw(mvm) || !mvm->tz_device.tzone)  in iwl_mvm_thermal_zone_unregister()
767 	IWL_DEBUG_TEMP(mvm, "Thermal zone device unregister\n");  in iwl_mvm_thermal_zone_unregister()
768 	if (mvm->tz_device.tzone) {  in iwl_mvm_thermal_zone_unregister()
769 		thermal_zone_device_unregister(mvm->tz_device.tzone);  in iwl_mvm_thermal_zone_unregister()
770 		mvm->tz_device.tzone = NULL;  in iwl_mvm_thermal_zone_unregister()
776 	if (!iwl_mvm_is_ctdp_supported(mvm) || !mvm->cooling_dev.cdev)  in iwl_mvm_cooling_device_unregister()
779 	IWL_DEBUG_TEMP(mvm, "Cooling device unregister\n");  in iwl_mvm_cooling_device_unregister()
780 	if (mvm->cooling_dev.cdev) {  in iwl_mvm_cooling_device_unregister()
781 		thermal_cooling_device_unregister(mvm->cooling_dev.cdev);  in iwl_mvm_cooling_device_unregister()
782 		mvm->cooling_dev.cdev = NULL;  in iwl_mvm_cooling_device_unregister()
792 	switch (CSR_HW_RFID_TYPE(mvm->trans->info.hw_rf_id)) {  in iwl_mvm_ctdp_get_max_budget()
802 		/* dual-radio devices have a higher budget */  in iwl_mvm_ctdp_get_max_budget()
803 		if (CSR_HW_RFID_IS_CDB(mvm->trans->info.hw_rf_id))  in iwl_mvm_ctdp_get_max_budget()
816 	iwl_bios_get_pwr_limit(&mvm->fwrt, &bios_power_budget);  in iwl_mvm_ctdp_get_max_budget()
830 	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;  in iwl_mvm_thermal_initialize()
834 	if (mvm->cfg->thermal_params)  in iwl_mvm_thermal_initialize()
835 		tt->params = *mvm->cfg->thermal_params;  in iwl_mvm_thermal_initialize()
837 		tt->params = iwl_mvm_default_tt_params;  in iwl_mvm_thermal_initialize()
839 	tt->power_budget_mw = iwl_mvm_ctdp_get_max_budget(mvm);  in iwl_mvm_thermal_initialize()
840 	IWL_DEBUG_TEMP(mvm, "cTDP power budget: %d mW\n", tt->power_budget_mw);  in iwl_mvm_thermal_initialize()
841 	tt->throttle = false;  in iwl_mvm_thermal_initialize()
842 	tt->dynamic_smps = false;  in iwl_mvm_thermal_initialize()
843 	tt->min_backoff = min_backoff;  in iwl_mvm_thermal_initialize()
844 	INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill);  in iwl_mvm_thermal_initialize()
850 	mvm->init_status |= IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE;  in iwl_mvm_thermal_initialize()
855 	if (!(mvm->init_status & IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE))  in iwl_mvm_thermal_exit()
858 	cancel_delayed_work_sync(&mvm->thermal_throttle.ct_kill_exit);  in iwl_mvm_thermal_exit()
865 	mvm->init_status &= ~IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE;  in iwl_mvm_thermal_exit()