Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Chaya Rachel Ivgy | 1834 | 50.22% | 7 | 18.42% |
Eytan Lifshitz | 1064 | 29.13% | 6 | 15.79% |
Luciano Coelho | 503 | 13.77% | 9 | 23.68% |
Emmanuel Grumbach | 58 | 1.59% | 1 | 2.63% |
Arik Nemtsov | 47 | 1.29% | 1 | 2.63% |
Johannes Berg | 39 | 1.07% | 5 | 13.16% |
Liad Kaufman | 25 | 0.68% | 1 | 2.63% |
Aviya Erenfeld | 21 | 0.58% | 1 | 2.63% |
Jens Axboe | 20 | 0.55% | 1 | 2.63% |
Ido Yariv | 14 | 0.38% | 1 | 2.63% |
Eliad Peller | 14 | 0.38% | 1 | 2.63% |
Sara Sharon | 12 | 0.33% | 3 | 7.89% |
Bhumika Goyal | 1 | 0.03% | 1 | 2.63% |
Total | 3652 | 38 |
/****************************************************************************** * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH * Copyright(c) 2015 - 2016 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * The full GNU General Public License is included in this distribution * in the file called COPYING. * * Contact Information: * Intel Linux Wireless <linuxwifi@intel.com> * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * * BSD LICENSE * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH * Copyright(c) 2015 - 2016 Intel Deutschland GmbH * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ #include <linux/sort.h> #include "mvm.h" #define IWL_MVM_TEMP_NOTIF_WAIT_TIMEOUT HZ void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm) { struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; u32 duration = tt->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); if (!iwl_mvm_is_tt_in_fw(mvm)) { tt->throttle = false; tt->dynamic_smps = false; } /* Don't schedule an exit work if we're in test mode, since * the temperature will not change unless we manually set it * again (or disable testing). */ if (!mvm->temperature_test) schedule_delayed_work(&tt->ct_kill_exit, round_jiffies_relative(duration * HZ)); } 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); } void iwl_mvm_tt_temp_changed(struct iwl_mvm *mvm, u32 temp) { /* ignore the notification if we are in test mode */ if (mvm->temperature_test) return; if (mvm->temperature == temp) return; mvm->temperature = temp; iwl_mvm_tt_handler(mvm); } static int iwl_mvm_temp_notif_parse(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) { struct iwl_dts_measurement_notif_v1 *notif_v1; int len = iwl_rx_packet_payload_len(pkt); int temp; /* we can use notif_v1 only, because v2 only adds an additional * parameter, which is not used in this function. */ if (WARN_ON_ONCE(len < sizeof(*notif_v1))) { IWL_ERR(mvm, "Invalid DTS_MEASUREMENT_NOTIFICATION\n"); return -EINVAL; } notif_v1 = (void *)pkt->data; temp = le32_to_cpu(notif_v1->temp); /* shouldn't be negative, but since it's s32, make sure it isn't */ if (WARN_ON_ONCE(temp < 0)) temp = 0; IWL_DEBUG_TEMP(mvm, "DTS_MEASUREMENT_NOTIFICATION - %d\n", temp); return temp; } static bool iwl_mvm_temp_notif_wait(struct iwl_notif_wait_data *notif_wait, struct iwl_rx_packet *pkt, void *data) { struct iwl_mvm *mvm = container_of(notif_wait, struct iwl_mvm, notif_wait); int *temp = data; int ret; ret = iwl_mvm_temp_notif_parse(mvm, pkt); if (ret < 0) return true; *temp = ret; return true; } void iwl_mvm_temp_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_dts_measurement_notif_v2 *notif_v2; int len = iwl_rx_packet_payload_len(pkt); int temp; u32 ths_crossed; /* the notification is handled synchronously in ctkill, so skip here */ if (test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) return; temp = iwl_mvm_temp_notif_parse(mvm, pkt); if (!iwl_mvm_is_tt_in_fw(mvm)) { if (temp >= 0) iwl_mvm_tt_temp_changed(mvm, temp); return; } if (WARN_ON_ONCE(len < sizeof(*notif_v2))) { IWL_ERR(mvm, "Invalid DTS_MEASUREMENT_NOTIFICATION\n"); return; } notif_v2 = (void *)pkt->data; ths_crossed = le32_to_cpu(notif_v2->threshold_idx); /* 0xFF in ths_crossed means the notification is not related * to a trip, so we can ignore it here. */ if (ths_crossed == 0xFF) return; IWL_DEBUG_TEMP(mvm, "Temp = %d Threshold crossed = %d\n", temp, ths_crossed); #ifdef CONFIG_THERMAL if (WARN_ON(ths_crossed >= IWL_MAX_DTS_TRIPS)) return; if (mvm->tz_device.tzone) { struct iwl_mvm_thermal_device *tz_dev = &mvm->tz_device; thermal_notify_framework(tz_dev->tzone, tz_dev->fw_trips_index[ths_crossed]); } #endif /* CONFIG_THERMAL */ } void iwl_mvm_ct_kill_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct ct_kill_notif *notif; int len = iwl_rx_packet_payload_len(pkt); if (WARN_ON_ONCE(len != sizeof(*notif))) { IWL_ERR(mvm, "Invalid CT_KILL_NOTIFICATION\n"); return; } notif = (struct ct_kill_notif *)pkt->data; IWL_DEBUG_TEMP(mvm, "CT Kill notification temperature = %d\n", notif->temperature); iwl_mvm_enter_ctkill(mvm); } static int iwl_mvm_get_temp_cmd(struct iwl_mvm *mvm) { struct iwl_dts_measurement_cmd cmd = { .flags = cpu_to_le32(DTS_TRIGGER_CMD_FLAGS_TEMP), }; struct iwl_ext_dts_measurement_cmd extcmd = { .control_mode = cpu_to_le32(DTS_AUTOMATIC), }; u32 cmdid; cmdid = iwl_cmd_id(CMD_DTS_MEASUREMENT_TRIGGER_WIDE, PHY_OPS_GROUP, 0); if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE)) return iwl_mvm_send_cmd_pdu(mvm, cmdid, 0, sizeof(cmd), &cmd); return iwl_mvm_send_cmd_pdu(mvm, cmdid, 0, sizeof(extcmd), &extcmd); } int iwl_mvm_get_temp(struct iwl_mvm *mvm, s32 *temp) { struct iwl_notification_wait wait_temp_notif; static u16 temp_notif[] = { WIDE_ID(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE) }; int ret; lockdep_assert_held(&mvm->mutex); iwl_init_notification_wait(&mvm->notif_wait, &wait_temp_notif, temp_notif, ARRAY_SIZE(temp_notif), iwl_mvm_temp_notif_wait, temp); ret = iwl_mvm_get_temp_cmd(mvm); if (ret) { IWL_ERR(mvm, "Failed to get the temperature (err=%d)\n", ret); iwl_remove_notification(&mvm->notif_wait, &wait_temp_notif); return ret; } ret = iwl_wait_notification(&mvm->notif_wait, &wait_temp_notif, IWL_MVM_TEMP_NOTIF_WAIT_TIMEOUT); if (ret) IWL_ERR(mvm, "Getting the temperature timed out\n"); return ret; } static void check_exit_ctkill(struct work_struct *work) { struct iwl_mvm_tt_mgmt *tt; struct iwl_mvm *mvm; u32 duration; s32 temp; int ret; tt = container_of(work, struct iwl_mvm_tt_mgmt, ct_kill_exit.work); mvm = container_of(tt, struct iwl_mvm, thermal_throttle); if (iwl_mvm_is_tt_in_fw(mvm)) { iwl_mvm_exit_ctkill(mvm); return; } duration = tt->params.ct_kill_duration; mutex_lock(&mvm->mutex); if (__iwl_mvm_mac_start(mvm)) goto reschedule; /* make sure the device is available for direct read/writes */ if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_CHECK_CTKILL)) { __iwl_mvm_mac_stop(mvm); goto reschedule; } ret = iwl_mvm_get_temp(mvm, &temp); iwl_mvm_unref(mvm, IWL_MVM_REF_CHECK_CTKILL); __iwl_mvm_mac_stop(mvm); if (ret) goto reschedule; IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", temp); if (temp <= tt->params.ct_kill_exit) { mutex_unlock(&mvm->mutex); iwl_mvm_exit_ctkill(mvm); return; } reschedule: mutex_unlock(&mvm->mutex); schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit, round_jiffies(duration * HZ)); } static void iwl_mvm_tt_smps_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) { struct iwl_mvm *mvm = _data; enum ieee80211_smps_mode smps_mode; lockdep_assert_held(&mvm->mutex); if (mvm->thermal_throttle.dynamic_smps) smps_mode = IEEE80211_SMPS_DYNAMIC; else smps_mode = IEEE80211_SMPS_AUTOMATIC; if (vif->type != NL80211_IFTYPE_STATION) return; iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, smps_mode); } static void iwl_mvm_tt_tx_protection(struct iwl_mvm *mvm, bool enable) { struct iwl_mvm_sta *mvmsta; int i, err; for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { mvmsta = iwl_mvm_sta_from_staid_protected(mvm, i); if (!mvmsta) continue; if (enable == mvmsta->tt_tx_protection) continue; err = iwl_mvm_tx_protection(mvm, mvmsta, enable); if (err) { IWL_ERR(mvm, "Failed to %s Tx protection\n", enable ? "enable" : "disable"); } else { IWL_DEBUG_TEMP(mvm, "%s Tx protection\n", enable ? "Enable" : "Disable"); mvmsta->tt_tx_protection = enable; } } } void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff) { struct iwl_host_cmd cmd = { .id = REPLY_THERMAL_MNG_BACKOFF, .len = { sizeof(u32), }, .data = { &backoff, }, }; backoff = max(backoff, mvm->thermal_throttle.min_backoff); if (iwl_mvm_send_cmd(mvm, &cmd) == 0) { IWL_DEBUG_TEMP(mvm, "Set Thermal Tx backoff to: %u\n", backoff); mvm->thermal_throttle.tx_backoff = backoff; } else { IWL_ERR(mvm, "Failed to change Thermal Tx backoff\n"); } } void iwl_mvm_tt_handler(struct iwl_mvm *mvm) { struct iwl_tt_params *params = &mvm->thermal_throttle.params; struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; s32 temperature = mvm->temperature; bool throttle_enable = false; int i; u32 tx_backoff; IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", mvm->temperature); if (params->support_ct_kill && temperature >= params->ct_kill_entry) { iwl_mvm_enter_ctkill(mvm); return; } if (params->support_ct_kill && temperature <= params->ct_kill_exit) { iwl_mvm_exit_ctkill(mvm); return; } if (params->support_dynamic_smps) { if (!tt->dynamic_smps && temperature >= params->dynamic_smps_entry) { IWL_DEBUG_TEMP(mvm, "Enable dynamic SMPS\n"); tt->dynamic_smps = true; ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_tt_smps_iterator, mvm); throttle_enable = true; } else if (tt->dynamic_smps && temperature <= params->dynamic_smps_exit) { IWL_DEBUG_TEMP(mvm, "Disable dynamic SMPS\n"); tt->dynamic_smps = false; ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_tt_smps_iterator, mvm); } } if (params->support_tx_protection) { if (temperature >= params->tx_protection_entry) { iwl_mvm_tt_tx_protection(mvm, true); throttle_enable = true; } else if (temperature <= params->tx_protection_exit) { iwl_mvm_tt_tx_protection(mvm, false); } } if (params->support_tx_backoff) { tx_backoff = tt->min_backoff; for (i = 0; i < TT_TX_BACKOFF_SIZE; i++) { if (temperature < params->tx_backoff[i].temperature) break; tx_backoff = max(tt->min_backoff, params->tx_backoff[i].backoff); } if (tx_backoff != tt->min_backoff) throttle_enable = true; if (tt->tx_backoff != tx_backoff) iwl_mvm_tt_tx_backoff(mvm, tx_backoff); } if (!tt->throttle && throttle_enable) { IWL_WARN(mvm, "Due to high temperature thermal throttling initiated\n"); tt->throttle = true; } else if (tt->throttle && !tt->dynamic_smps && tt->tx_backoff == tt->min_backoff && temperature <= params->tx_protection_exit) { IWL_WARN(mvm, "Temperature is back to normal thermal throttling stopped\n"); tt->throttle = false; } } static const struct iwl_tt_params iwl_mvm_default_tt_params = { .ct_kill_entry = 118, .ct_kill_exit = 96, .ct_kill_duration = 5, .dynamic_smps_entry = 114, .dynamic_smps_exit = 110, .tx_protection_entry = 114, .tx_protection_exit = 108, .tx_backoff = { {.temperature = 112, .backoff = 200}, {.temperature = 113, .backoff = 600}, {.temperature = 114, .backoff = 1200}, {.temperature = 115, .backoff = 2000}, {.temperature = 116, .backoff = 4000}, {.temperature = 117, .backoff = 10000}, }, .support_ct_kill = true, .support_dynamic_smps = true, .support_tx_protection = true, .support_tx_backoff = true, }; /* budget in mWatt */ static const u32 iwl_mvm_cdev_budgets[] = { 2000, /* cooling state 0 */ 1800, /* cooling state 1 */ 1600, /* cooling state 2 */ 1400, /* cooling state 3 */ 1200, /* cooling state 4 */ 1000, /* cooling state 5 */ 900, /* cooling state 6 */ 800, /* cooling state 7 */ 700, /* cooling state 8 */ 650, /* cooling state 9 */ 600, /* cooling state 10 */ 550, /* cooling state 11 */ 500, /* cooling state 12 */ 450, /* cooling state 13 */ 400, /* cooling state 14 */ 350, /* cooling state 15 */ 300, /* cooling state 16 */ 250, /* cooling state 17 */ 200, /* cooling state 18 */ 150, /* cooling state 19 */ }; int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 state) { struct iwl_mvm_ctdp_cmd cmd = { .operation = cpu_to_le32(op), .budget = cpu_to_le32(iwl_mvm_cdev_budgets[state]), .window_size = 0, }; int ret; u32 status; lockdep_assert_held(&mvm->mutex); status = 0; ret = iwl_mvm_send_cmd_pdu_status(mvm, WIDE_ID(PHY_OPS_GROUP, CTDP_CONFIG_CMD), sizeof(cmd), &cmd, &status); if (ret) { IWL_ERR(mvm, "cTDP command failed (err=%d)\n", ret); return ret; } switch (op) { case CTDP_CMD_OPERATION_START: #ifdef CONFIG_THERMAL mvm->cooling_dev.cur_state = state; #endif /* CONFIG_THERMAL */ break; case CTDP_CMD_OPERATION_REPORT: IWL_DEBUG_TEMP(mvm, "cTDP avg energy in mWatt = %d\n", status); /* when the function is called with CTDP_CMD_OPERATION_REPORT * option the function should return the average budget value * that is received from the FW. * The budget can't be less or equal to 0, so it's possible * to distinguish between error values and budgets. */ return status; case CTDP_CMD_OPERATION_STOP: IWL_DEBUG_TEMP(mvm, "cTDP stopped successfully\n"); break; } return 0; } #ifdef CONFIG_THERMAL static int compare_temps(const void *a, const void *b) { return ((s16)le16_to_cpu(*(__le16 *)a) - (s16)le16_to_cpu(*(__le16 *)b)); } int iwl_mvm_send_temp_report_ths_cmd(struct iwl_mvm *mvm) { struct temp_report_ths_cmd cmd = {0}; int ret, i, j, idx = 0; lockdep_assert_held(&mvm->mutex); if (!mvm->tz_device.tzone) return -EINVAL; /* The driver holds array of temperature trips that are unsorted * and uncompressed, the FW should get it compressed and sorted */ /* compress temp_trips to cmd array, remove uninitialized values*/ for (i = 0; i < IWL_MAX_DTS_TRIPS; i++) { if (mvm->tz_device.temp_trips[i] != S16_MIN) { cmd.thresholds[idx++] = cpu_to_le16(mvm->tz_device.temp_trips[i]); } } cmd.num_temps = cpu_to_le32(idx); if (!idx) goto send; /*sort cmd array*/ sort(cmd.thresholds, idx, sizeof(s16), compare_temps, NULL); /* we should save the indexes of trips because we sort * and compress the orginal array */ for (i = 0; i < idx; i++) { for (j = 0; j < IWL_MAX_DTS_TRIPS; j++) { if (le16_to_cpu(cmd.thresholds[i]) == mvm->tz_device.temp_trips[j]) mvm->tz_device.fw_trips_index[i] = j; } } send: ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(PHY_OPS_GROUP, TEMP_REPORTING_THRESHOLDS_CMD), 0, sizeof(cmd), &cmd); if (ret) IWL_ERR(mvm, "TEMP_REPORT_THS_CMD command failed (err=%d)\n", ret); return ret; } static int iwl_mvm_tzone_get_temp(struct thermal_zone_device *device, int *temperature) { struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata; int ret; int temp; mutex_lock(&mvm->mutex); if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) { ret = -ENODATA; goto out; } ret = iwl_mvm_get_temp(mvm, &temp); if (ret) goto out; *temperature = temp * 1000; out: mutex_unlock(&mvm->mutex); return ret; } static int iwl_mvm_tzone_get_trip_temp(struct thermal_zone_device *device, int trip, int *temp) { struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata; if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS) return -EINVAL; *temp = mvm->tz_device.temp_trips[trip] * 1000; return 0; } static int iwl_mvm_tzone_get_trip_type(struct thermal_zone_device *device, int trip, enum thermal_trip_type *type) { if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS) return -EINVAL; *type = THERMAL_TRIP_PASSIVE; return 0; } static int iwl_mvm_tzone_set_trip_temp(struct thermal_zone_device *device, int trip, int temp) { struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata; struct iwl_mvm_thermal_device *tzone; int i, ret; s16 temperature; mutex_lock(&mvm->mutex); if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) { ret = -EIO; goto out; } if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS) { ret = -EINVAL; goto out; } if ((temp / 1000) > S16_MAX) { ret = -EINVAL; goto out; } temperature = (s16)(temp / 1000); tzone = &mvm->tz_device; if (!tzone) { ret = -EIO; goto out; } /* no updates*/ if (tzone->temp_trips[trip] == temperature) { ret = 0; goto out; } /* already existing temperature */ for (i = 0; i < IWL_MAX_DTS_TRIPS; i++) { if (tzone->temp_trips[i] == temperature) { ret = -EINVAL; goto out; } } tzone->temp_trips[trip] = temperature; ret = iwl_mvm_send_temp_report_ths_cmd(mvm); out: mutex_unlock(&mvm->mutex); return ret; } static struct thermal_zone_device_ops tzone_ops = { .get_temp = iwl_mvm_tzone_get_temp, .get_trip_temp = iwl_mvm_tzone_get_trip_temp, .get_trip_type = iwl_mvm_tzone_get_trip_type, .set_trip_temp = iwl_mvm_tzone_set_trip_temp, }; /* make all trips writable */ #define IWL_WRITABLE_TRIPS_MSK (BIT(IWL_MAX_DTS_TRIPS) - 1) static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm) { int i; char name[] = "iwlwifi"; if (!iwl_mvm_is_tt_in_fw(mvm)) { mvm->tz_device.tzone = NULL; return; } BUILD_BUG_ON(ARRAY_SIZE(name) >= THERMAL_NAME_LENGTH); mvm->tz_device.tzone = thermal_zone_device_register(name, IWL_MAX_DTS_TRIPS, IWL_WRITABLE_TRIPS_MSK, mvm, &tzone_ops, NULL, 0, 0); if (IS_ERR(mvm->tz_device.tzone)) { IWL_DEBUG_TEMP(mvm, "Failed to register to thermal zone (err = %ld)\n", PTR_ERR(mvm->tz_device.tzone)); mvm->tz_device.tzone = NULL; return; } /* 0 is a valid temperature, * so initialize the array with S16_MIN which invalid temperature */ for (i = 0 ; i < IWL_MAX_DTS_TRIPS; i++) mvm->tz_device.temp_trips[i] = S16_MIN; } static int iwl_mvm_tcool_get_max_state(struct thermal_cooling_device *cdev, unsigned long *state) { *state = ARRAY_SIZE(iwl_mvm_cdev_budgets) - 1; return 0; } static int iwl_mvm_tcool_get_cur_state(struct thermal_cooling_device *cdev, unsigned long *state) { struct iwl_mvm *mvm = (struct iwl_mvm *)(cdev->devdata); *state = mvm->cooling_dev.cur_state; return 0; } static int iwl_mvm_tcool_set_cur_state(struct thermal_cooling_device *cdev, unsigned long new_state) { struct iwl_mvm *mvm = (struct iwl_mvm *)(cdev->devdata); int ret; mutex_lock(&mvm->mutex); if (!iwl_mvm_firmware_running(mvm) || mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) { ret = -EIO; goto unlock; } if (new_state >= ARRAY_SIZE(iwl_mvm_cdev_budgets)) { ret = -EINVAL; goto unlock; } ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START, new_state); unlock: mutex_unlock(&mvm->mutex); return ret; } static const struct thermal_cooling_device_ops tcooling_ops = { .get_max_state = iwl_mvm_tcool_get_max_state, .get_cur_state = iwl_mvm_tcool_get_cur_state, .set_cur_state = iwl_mvm_tcool_set_cur_state, }; static void iwl_mvm_cooling_device_register(struct iwl_mvm *mvm) { char name[] = "iwlwifi"; if (!iwl_mvm_is_ctdp_supported(mvm)) return; BUILD_BUG_ON(ARRAY_SIZE(name) >= THERMAL_NAME_LENGTH); mvm->cooling_dev.cdev = thermal_cooling_device_register(name, mvm, &tcooling_ops); if (IS_ERR(mvm->cooling_dev.cdev)) { IWL_DEBUG_TEMP(mvm, "Failed to register to cooling device (err = %ld)\n", PTR_ERR(mvm->cooling_dev.cdev)); mvm->cooling_dev.cdev = NULL; return; } } static void iwl_mvm_thermal_zone_unregister(struct iwl_mvm *mvm) { if (!iwl_mvm_is_tt_in_fw(mvm) || !mvm->tz_device.tzone) return; IWL_DEBUG_TEMP(mvm, "Thermal zone device unregister\n"); if (mvm->tz_device.tzone) { thermal_zone_device_unregister(mvm->tz_device.tzone); mvm->tz_device.tzone = NULL; } } static void iwl_mvm_cooling_device_unregister(struct iwl_mvm *mvm) { if (!iwl_mvm_is_ctdp_supported(mvm) || !mvm->cooling_dev.cdev) return; IWL_DEBUG_TEMP(mvm, "Cooling device unregister\n"); if (mvm->cooling_dev.cdev) { thermal_cooling_device_unregister(mvm->cooling_dev.cdev); mvm->cooling_dev.cdev = NULL; } } #endif /* CONFIG_THERMAL */ void iwl_mvm_thermal_initialize(struct iwl_mvm *mvm, u32 min_backoff) { struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; IWL_DEBUG_TEMP(mvm, "Initialize Thermal Throttling\n"); if (mvm->cfg->thermal_params) tt->params = *mvm->cfg->thermal_params; else tt->params = iwl_mvm_default_tt_params; tt->throttle = false; tt->dynamic_smps = false; tt->min_backoff = min_backoff; INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill); #ifdef CONFIG_THERMAL iwl_mvm_cooling_device_register(mvm); iwl_mvm_thermal_zone_register(mvm); #endif mvm->init_status |= IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE; } void iwl_mvm_thermal_exit(struct iwl_mvm *mvm) { if (!(mvm->init_status & IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE)) return; cancel_delayed_work_sync(&mvm->thermal_throttle.ct_kill_exit); IWL_DEBUG_TEMP(mvm, "Exit Thermal Throttling\n"); #ifdef CONFIG_THERMAL iwl_mvm_cooling_device_unregister(mvm); iwl_mvm_thermal_zone_unregister(mvm); #endif mvm->init_status &= ~IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE; }
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