From 0975cc8fbf5b61b188734f2edd9e588c7edff2a1 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Sat, 31 Jul 2010 08:34:07 -0700 Subject: iwlwifi: separate thermal throttling function "Thermal Throttling" is an advance feature which only available for newer _agn devices. Move from iwl-core to iwl-agn for better code organization. Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index 728bb85..4931639 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_IWLAGN) += iwlagn.o iwlagn-objs := iwl-agn.o iwl-agn-rs.o iwl-agn-led.o iwl-agn-ict.o iwlagn-objs += iwl-agn-ucode.o iwl-agn-hcmd.o iwl-agn-tx.o iwlagn-objs += iwl-agn-lib.o iwl-agn-rx.o iwl-agn-calib.o +iwlagn-objs += iwl-agn-tt.o iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-agn-debugfs.o iwlagn-$(CONFIG_IWL4965) += iwl-4965.o diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index fec0262..f687a19 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -229,6 +229,11 @@ static struct iwl_lib_ops iwl1000_lib = { .check_ack_health = iwl_good_ack_health, .txfifo_flush = iwlagn_txfifo_flush, .dev_txfifo_flush = iwlagn_dev_txfifo_flush, + .tt_ops = { + .lower_power_detection = iwl_tt_is_low_power_state, + .tt_power_mode = iwl_tt_current_power_mode, + .ct_kill_check = iwl_check_for_ct_kill, + } }; static const struct iwl_ops iwl1000_ops = { diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index aacf377..54083a3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -405,6 +405,11 @@ static struct iwl_lib_ops iwl5000_lib = { .check_ack_health = iwl_good_ack_health, .txfifo_flush = iwlagn_txfifo_flush, .dev_txfifo_flush = iwlagn_dev_txfifo_flush, + .tt_ops = { + .lower_power_detection = iwl_tt_is_low_power_state, + .tt_power_mode = iwl_tt_current_power_mode, + .ct_kill_check = iwl_check_for_ct_kill, + } }; static struct iwl_lib_ops iwl5150_lib = { @@ -470,6 +475,11 @@ static struct iwl_lib_ops iwl5150_lib = { .check_ack_health = iwl_good_ack_health, .txfifo_flush = iwlagn_txfifo_flush, .dev_txfifo_flush = iwlagn_dev_txfifo_flush, + .tt_ops = { + .lower_power_detection = iwl_tt_is_low_power_state, + .tt_power_mode = iwl_tt_current_power_mode, + .ct_kill_check = iwl_check_for_ct_kill, + } }; static const struct iwl_ops iwl5000_ops = { diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index af4fd50..7902de17 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -330,6 +330,11 @@ static struct iwl_lib_ops iwl6000_lib = { .check_ack_health = iwl_good_ack_health, .txfifo_flush = iwlagn_txfifo_flush, .dev_txfifo_flush = iwlagn_dev_txfifo_flush, + .tt_ops = { + .lower_power_detection = iwl_tt_is_low_power_state, + .tt_power_mode = iwl_tt_current_power_mode, + .ct_kill_check = iwl_check_for_ct_kill, + } }; static const struct iwl_ops iwl6000_ops = { diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tt.c b/drivers/net/wireless/iwlwifi/iwl-agn-tt.c new file mode 100644 index 0000000..30298ea --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tt.c @@ -0,0 +1,696 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2010 Intel Corporation. All rights reserved. + * + * Portions of this file are derived from the ipw3945 project, as well + * as portions of the ieee80211 subsystem header files. + * + * 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. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + *****************************************************************************/ + + +#include +#include +#include +#include + +#include + +#include "iwl-eeprom.h" +#include "iwl-dev.h" +#include "iwl-core.h" +#include "iwl-io.h" +#include "iwl-commands.h" +#include "iwl-debug.h" +#include "iwl-agn-tt.h" + +/* default Thermal Throttling transaction table + * Current state | Throttling Down | Throttling Up + *============================================================================= + * Condition Nxt State Condition Nxt State Condition Nxt State + *----------------------------------------------------------------------------- + * IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A + * IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0 + * IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1 + * IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0 + *============================================================================= + */ +static const struct iwl_tt_trans tt_range_0[IWL_TI_STATE_MAX - 1] = { + {IWL_TI_0, IWL_ABSOLUTE_ZERO, 104}, + {IWL_TI_1, 105, CT_KILL_THRESHOLD - 1}, + {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX} +}; +static const struct iwl_tt_trans tt_range_1[IWL_TI_STATE_MAX - 1] = { + {IWL_TI_0, IWL_ABSOLUTE_ZERO, 95}, + {IWL_TI_2, 110, CT_KILL_THRESHOLD - 1}, + {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX} +}; +static const struct iwl_tt_trans tt_range_2[IWL_TI_STATE_MAX - 1] = { + {IWL_TI_1, IWL_ABSOLUTE_ZERO, 100}, + {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}, + {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX} +}; +static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1] = { + {IWL_TI_0, IWL_ABSOLUTE_ZERO, CT_KILL_EXIT_THRESHOLD}, + {IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX}, + {IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX} +}; + +/* Advance Thermal Throttling default restriction table */ +static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = { + {IWL_ANT_OK_MULTI, IWL_ANT_OK_MULTI, true }, + {IWL_ANT_OK_SINGLE, IWL_ANT_OK_MULTI, true }, + {IWL_ANT_OK_SINGLE, IWL_ANT_OK_SINGLE, false }, + {IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false } +}; + +bool iwl_tt_is_low_power_state(struct iwl_priv *priv) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + + if (tt->state >= IWL_TI_1) + return true; + return false; +} + +u8 iwl_tt_current_power_mode(struct iwl_priv *priv) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + + return tt->tt_power_mode; +} + +bool iwl_ht_enabled(struct iwl_priv *priv) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + struct iwl_tt_restriction *restriction; + + if (!priv->thermal_throttle.advanced_tt) + return true; + restriction = tt->restriction + tt->state; + return restriction->is_ht; +} + +static bool iwl_within_ct_kill_margin(struct iwl_priv *priv) +{ + s32 temp = priv->temperature; /* degrees CELSIUS except specified */ + bool within_margin = false; + + if (priv->cfg->temperature_kelvin) + temp = KELVIN_TO_CELSIUS(priv->temperature); + + if (!priv->thermal_throttle.advanced_tt) + within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >= + CT_KILL_THRESHOLD_LEGACY) ? true : false; + else + within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >= + CT_KILL_THRESHOLD) ? true : false; + return within_margin; +} + +bool iwl_check_for_ct_kill(struct iwl_priv *priv) +{ + bool is_ct_kill = false; + + if (iwl_within_ct_kill_margin(priv)) { + iwl_tt_enter_ct_kill(priv); + is_ct_kill = true; + } + return is_ct_kill; +} + +enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + struct iwl_tt_restriction *restriction; + + if (!priv->thermal_throttle.advanced_tt) + return IWL_ANT_OK_MULTI; + restriction = tt->restriction + tt->state; + return restriction->tx_stream; +} + +enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + struct iwl_tt_restriction *restriction; + + if (!priv->thermal_throttle.advanced_tt) + return IWL_ANT_OK_MULTI; + restriction = tt->restriction + tt->state; + return restriction->rx_stream; +} + +#define CT_KILL_EXIT_DURATION (5) /* 5 seconds duration */ +#define CT_KILL_WAITING_DURATION (300) /* 300ms duration */ + +/* + * toggle the bit to wake up uCode and check the temperature + * if the temperature is below CT, uCode will stay awake and send card + * state notification with CT_KILL bit clear to inform Thermal Throttling + * Management to change state. Otherwise, uCode will go back to sleep + * without doing anything, driver should continue the 5 seconds timer + * to wake up uCode for temperature check until temperature drop below CT + */ +static void iwl_tt_check_exit_ct_kill(unsigned long data) +{ + struct iwl_priv *priv = (struct iwl_priv *)data; + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + unsigned long flags; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + if (tt->state == IWL_TI_CT_KILL) { + if (priv->thermal_throttle.ct_kill_toggle) { + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, + CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); + priv->thermal_throttle.ct_kill_toggle = false; + } else { + iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, + CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); + priv->thermal_throttle.ct_kill_toggle = true; + } + iwl_read32(priv, CSR_UCODE_DRV_GP1); + spin_lock_irqsave(&priv->reg_lock, flags); + if (!iwl_grab_nic_access(priv)) + iwl_release_nic_access(priv); + spin_unlock_irqrestore(&priv->reg_lock, flags); + + /* Reschedule the ct_kill timer to occur in + * CT_KILL_EXIT_DURATION seconds to ensure we get a + * thermal update */ + IWL_DEBUG_POWER(priv, "schedule ct_kill exit timer\n"); + mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, + jiffies + CT_KILL_EXIT_DURATION * HZ); + } +} + +static void iwl_perform_ct_kill_task(struct iwl_priv *priv, + bool stop) +{ + if (stop) { + IWL_DEBUG_POWER(priv, "Stop all queues\n"); + if (priv->mac80211_registered) + ieee80211_stop_queues(priv->hw); + IWL_DEBUG_POWER(priv, + "Schedule 5 seconds CT_KILL Timer\n"); + mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, + jiffies + CT_KILL_EXIT_DURATION * HZ); + } else { + IWL_DEBUG_POWER(priv, "Wake all queues\n"); + if (priv->mac80211_registered) + ieee80211_wake_queues(priv->hw); + } +} + +static void iwl_tt_ready_for_ct_kill(unsigned long data) +{ + struct iwl_priv *priv = (struct iwl_priv *)data; + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + /* temperature timer expired, ready to go into CT_KILL state */ + if (tt->state != IWL_TI_CT_KILL) { + IWL_DEBUG_POWER(priv, "entering CT_KILL state when " + "temperature timer expired\n"); + tt->state = IWL_TI_CT_KILL; + set_bit(STATUS_CT_KILL, &priv->status); + iwl_perform_ct_kill_task(priv, true); + } +} + +static void iwl_prepare_ct_kill_task(struct iwl_priv *priv) +{ + IWL_DEBUG_POWER(priv, "Prepare to enter IWL_TI_CT_KILL\n"); + /* make request to retrieve statistics information */ + iwl_send_statistics_request(priv, CMD_SYNC, false); + /* Reschedule the ct_kill wait timer */ + mod_timer(&priv->thermal_throttle.ct_kill_waiting_tm, + jiffies + msecs_to_jiffies(CT_KILL_WAITING_DURATION)); +} + +#define IWL_MINIMAL_POWER_THRESHOLD (CT_KILL_THRESHOLD_LEGACY) +#define IWL_REDUCED_PERFORMANCE_THRESHOLD_2 (100) +#define IWL_REDUCED_PERFORMANCE_THRESHOLD_1 (90) + +/* + * Legacy thermal throttling + * 1) Avoid NIC destruction due to high temperatures + * Chip will identify dangerously high temperatures that can + * harm the device and will power down + * 2) Avoid the NIC power down due to high temperature + * Throttle early enough to lower the power consumption before + * drastic steps are needed + */ +static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp, bool force) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + enum iwl_tt_state old_state; + +#ifdef CONFIG_IWLWIFI_DEBUG + if ((tt->tt_previous_temp) && + (temp > tt->tt_previous_temp) && + ((temp - tt->tt_previous_temp) > + IWL_TT_INCREASE_MARGIN)) { + IWL_DEBUG_POWER(priv, + "Temperature increase %d degree Celsius\n", + (temp - tt->tt_previous_temp)); + } +#endif + old_state = tt->state; + /* in Celsius */ + if (temp >= IWL_MINIMAL_POWER_THRESHOLD) + tt->state = IWL_TI_CT_KILL; + else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_2) + tt->state = IWL_TI_2; + else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_1) + tt->state = IWL_TI_1; + else + tt->state = IWL_TI_0; + +#ifdef CONFIG_IWLWIFI_DEBUG + tt->tt_previous_temp = temp; +#endif + /* stop ct_kill_waiting_tm timer */ + del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm); + if (tt->state != old_state) { + switch (tt->state) { + case IWL_TI_0: + /* + * When the system is ready to go back to IWL_TI_0 + * we only have to call iwl_power_update_mode() to + * do so. + */ + break; + case IWL_TI_1: + tt->tt_power_mode = IWL_POWER_INDEX_3; + break; + case IWL_TI_2: + tt->tt_power_mode = IWL_POWER_INDEX_4; + break; + default: + tt->tt_power_mode = IWL_POWER_INDEX_5; + break; + } + mutex_lock(&priv->mutex); + if (old_state == IWL_TI_CT_KILL) + clear_bit(STATUS_CT_KILL, &priv->status); + if (tt->state != IWL_TI_CT_KILL && + iwl_power_update_mode(priv, true)) { + /* TT state not updated + * try again during next temperature read + */ + if (old_state == IWL_TI_CT_KILL) + set_bit(STATUS_CT_KILL, &priv->status); + tt->state = old_state; + IWL_ERR(priv, "Cannot update power mode, " + "TT state not updated\n"); + } else { + if (tt->state == IWL_TI_CT_KILL) { + if (force) { + set_bit(STATUS_CT_KILL, &priv->status); + iwl_perform_ct_kill_task(priv, true); + } else { + iwl_prepare_ct_kill_task(priv); + tt->state = old_state; + } + } else if (old_state == IWL_TI_CT_KILL && + tt->state != IWL_TI_CT_KILL) + iwl_perform_ct_kill_task(priv, false); + IWL_DEBUG_POWER(priv, "Temperature state changed %u\n", + tt->state); + IWL_DEBUG_POWER(priv, "Power Index change to %u\n", + tt->tt_power_mode); + } + mutex_unlock(&priv->mutex); + } +} + +/* + * Advance thermal throttling + * 1) Avoid NIC destruction due to high temperatures + * Chip will identify dangerously high temperatures that can + * harm the device and will power down + * 2) Avoid the NIC power down due to high temperature + * Throttle early enough to lower the power consumption before + * drastic steps are needed + * Actions include relaxing the power down sleep thresholds and + * decreasing the number of TX streams + * 3) Avoid throughput performance impact as much as possible + * + *============================================================================= + * Condition Nxt State Condition Nxt State Condition Nxt State + *----------------------------------------------------------------------------- + * IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A + * IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0 + * IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1 + * IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0 + *============================================================================= + */ +static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp, bool force) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + int i; + bool changed = false; + enum iwl_tt_state old_state; + struct iwl_tt_trans *transaction; + + old_state = tt->state; + for (i = 0; i < IWL_TI_STATE_MAX - 1; i++) { + /* based on the current TT state, + * find the curresponding transaction table + * each table has (IWL_TI_STATE_MAX - 1) entries + * tt->transaction + ((old_state * (IWL_TI_STATE_MAX - 1)) + * will advance to the correct table. + * then based on the current temperature + * find the next state need to transaction to + * go through all the possible (IWL_TI_STATE_MAX - 1) entries + * in the current table to see if transaction is needed + */ + transaction = tt->transaction + + ((old_state * (IWL_TI_STATE_MAX - 1)) + i); + if (temp >= transaction->tt_low && + temp <= transaction->tt_high) { +#ifdef CONFIG_IWLWIFI_DEBUG + if ((tt->tt_previous_temp) && + (temp > tt->tt_previous_temp) && + ((temp - tt->tt_previous_temp) > + IWL_TT_INCREASE_MARGIN)) { + IWL_DEBUG_POWER(priv, + "Temperature increase %d " + "degree Celsius\n", + (temp - tt->tt_previous_temp)); + } + tt->tt_previous_temp = temp; +#endif + if (old_state != + transaction->next_state) { + changed = true; + tt->state = + transaction->next_state; + } + break; + } + } + /* stop ct_kill_waiting_tm timer */ + del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm); + if (changed) { + struct iwl_rxon_cmd *rxon = &priv->staging_rxon; + + if (tt->state >= IWL_TI_1) { + /* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */ + tt->tt_power_mode = IWL_POWER_INDEX_5; + if (!iwl_ht_enabled(priv)) + /* disable HT */ + rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | + RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | + RXON_FLG_HT40_PROT_MSK | + RXON_FLG_HT_PROT_MSK); + else { + /* check HT capability and set + * according to the system HT capability + * in case get disabled before */ + iwl_set_rxon_ht(priv, &priv->current_ht_config); + } + + } else { + /* + * restore system power setting -- it will be + * recalculated automatically. + */ + + /* check HT capability and set + * according to the system HT capability + * in case get disabled before */ + iwl_set_rxon_ht(priv, &priv->current_ht_config); + } + mutex_lock(&priv->mutex); + if (old_state == IWL_TI_CT_KILL) + clear_bit(STATUS_CT_KILL, &priv->status); + if (tt->state != IWL_TI_CT_KILL && + iwl_power_update_mode(priv, true)) { + /* TT state not updated + * try again during next temperature read + */ + IWL_ERR(priv, "Cannot update power mode, " + "TT state not updated\n"); + if (old_state == IWL_TI_CT_KILL) + set_bit(STATUS_CT_KILL, &priv->status); + tt->state = old_state; + } else { + IWL_DEBUG_POWER(priv, + "Thermal Throttling to new state: %u\n", + tt->state); + if (old_state != IWL_TI_CT_KILL && + tt->state == IWL_TI_CT_KILL) { + if (force) { + IWL_DEBUG_POWER(priv, + "Enter IWL_TI_CT_KILL\n"); + set_bit(STATUS_CT_KILL, &priv->status); + iwl_perform_ct_kill_task(priv, true); + } else { + iwl_prepare_ct_kill_task(priv); + tt->state = old_state; + } + } else if (old_state == IWL_TI_CT_KILL && + tt->state != IWL_TI_CT_KILL) { + IWL_DEBUG_POWER(priv, "Exit IWL_TI_CT_KILL\n"); + iwl_perform_ct_kill_task(priv, false); + } + } + mutex_unlock(&priv->mutex); + } +} + +/* Card State Notification indicated reach critical temperature + * if PSP not enable, no Thermal Throttling function will be performed + * just set the GP1 bit to acknowledge the event + * otherwise, go into IWL_TI_CT_KILL state + * since Card State Notification will not provide any temperature reading + * for Legacy mode + * so just pass the CT_KILL temperature to iwl_legacy_tt_handler() + * for advance mode + * pass CT_KILL_THRESHOLD+1 to make sure move into IWL_TI_CT_KILL state + */ +static void iwl_bg_ct_enter(struct work_struct *work) +{ + struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_enter); + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + if (!iwl_is_ready(priv)) + return; + + if (tt->state != IWL_TI_CT_KILL) { + IWL_ERR(priv, "Device reached critical temperature " + "- ucode going to sleep!\n"); + if (!priv->thermal_throttle.advanced_tt) + iwl_legacy_tt_handler(priv, + IWL_MINIMAL_POWER_THRESHOLD, + true); + else + iwl_advance_tt_handler(priv, + CT_KILL_THRESHOLD + 1, true); + } +} + +/* Card State Notification indicated out of critical temperature + * since Card State Notification will not provide any temperature reading + * so pass the IWL_REDUCED_PERFORMANCE_THRESHOLD_2 temperature + * to iwl_legacy_tt_handler() to get out of IWL_CT_KILL state + */ +static void iwl_bg_ct_exit(struct work_struct *work) +{ + struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_exit); + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + if (!iwl_is_ready(priv)) + return; + + /* stop ct_kill_exit_tm timer */ + del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm); + + if (tt->state == IWL_TI_CT_KILL) { + IWL_ERR(priv, + "Device temperature below critical" + "- ucode awake!\n"); + /* + * exit from CT_KILL state + * reset the current temperature reading + */ + priv->temperature = 0; + if (!priv->thermal_throttle.advanced_tt) + iwl_legacy_tt_handler(priv, + IWL_REDUCED_PERFORMANCE_THRESHOLD_2, + true); + else + iwl_advance_tt_handler(priv, CT_KILL_EXIT_THRESHOLD, + true); + } +} + +void iwl_tt_enter_ct_kill(struct iwl_priv *priv) +{ + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + IWL_DEBUG_POWER(priv, "Queueing critical temperature enter.\n"); + queue_work(priv->workqueue, &priv->ct_enter); +} +EXPORT_SYMBOL(iwl_tt_enter_ct_kill); + +void iwl_tt_exit_ct_kill(struct iwl_priv *priv) +{ + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + IWL_DEBUG_POWER(priv, "Queueing critical temperature exit.\n"); + queue_work(priv->workqueue, &priv->ct_exit); +} +EXPORT_SYMBOL(iwl_tt_exit_ct_kill); + +static void iwl_bg_tt_work(struct work_struct *work) +{ + struct iwl_priv *priv = container_of(work, struct iwl_priv, tt_work); + s32 temp = priv->temperature; /* degrees CELSIUS except specified */ + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + if (priv->cfg->temperature_kelvin) + temp = KELVIN_TO_CELSIUS(priv->temperature); + + if (!priv->thermal_throttle.advanced_tt) + iwl_legacy_tt_handler(priv, temp, false); + else + iwl_advance_tt_handler(priv, temp, false); +} + +void iwl_tt_handler(struct iwl_priv *priv) +{ + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + IWL_DEBUG_POWER(priv, "Queueing thermal throttling work.\n"); + queue_work(priv->workqueue, &priv->tt_work); +} +EXPORT_SYMBOL(iwl_tt_handler); + +/* Thermal throttling initialization + * For advance thermal throttling: + * Initialize Thermal Index and temperature threshold table + * Initialize thermal throttling restriction table + */ +void iwl_tt_initialize(struct iwl_priv *priv) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1); + struct iwl_tt_trans *transaction; + + IWL_DEBUG_POWER(priv, "Initialize Thermal Throttling\n"); + + memset(tt, 0, sizeof(struct iwl_tt_mgmt)); + + tt->state = IWL_TI_0; + init_timer(&priv->thermal_throttle.ct_kill_exit_tm); + priv->thermal_throttle.ct_kill_exit_tm.data = (unsigned long)priv; + priv->thermal_throttle.ct_kill_exit_tm.function = + iwl_tt_check_exit_ct_kill; + init_timer(&priv->thermal_throttle.ct_kill_waiting_tm); + priv->thermal_throttle.ct_kill_waiting_tm.data = + (unsigned long)priv; + priv->thermal_throttle.ct_kill_waiting_tm.function = + iwl_tt_ready_for_ct_kill; + /* setup deferred ct kill work */ + INIT_WORK(&priv->tt_work, iwl_bg_tt_work); + INIT_WORK(&priv->ct_enter, iwl_bg_ct_enter); + INIT_WORK(&priv->ct_exit, iwl_bg_ct_exit); + + if (priv->cfg->adv_thermal_throttle) { + IWL_DEBUG_POWER(priv, "Advanced Thermal Throttling\n"); + tt->restriction = kzalloc(sizeof(struct iwl_tt_restriction) * + IWL_TI_STATE_MAX, GFP_KERNEL); + tt->transaction = kzalloc(sizeof(struct iwl_tt_trans) * + IWL_TI_STATE_MAX * (IWL_TI_STATE_MAX - 1), + GFP_KERNEL); + if (!tt->restriction || !tt->transaction) { + IWL_ERR(priv, "Fallback to Legacy Throttling\n"); + priv->thermal_throttle.advanced_tt = false; + kfree(tt->restriction); + tt->restriction = NULL; + kfree(tt->transaction); + tt->transaction = NULL; + } else { + transaction = tt->transaction + + (IWL_TI_0 * (IWL_TI_STATE_MAX - 1)); + memcpy(transaction, &tt_range_0[0], size); + transaction = tt->transaction + + (IWL_TI_1 * (IWL_TI_STATE_MAX - 1)); + memcpy(transaction, &tt_range_1[0], size); + transaction = tt->transaction + + (IWL_TI_2 * (IWL_TI_STATE_MAX - 1)); + memcpy(transaction, &tt_range_2[0], size); + transaction = tt->transaction + + (IWL_TI_CT_KILL * (IWL_TI_STATE_MAX - 1)); + memcpy(transaction, &tt_range_3[0], size); + size = sizeof(struct iwl_tt_restriction) * + IWL_TI_STATE_MAX; + memcpy(tt->restriction, + &restriction_range[0], size); + priv->thermal_throttle.advanced_tt = true; + } + } else { + IWL_DEBUG_POWER(priv, "Legacy Thermal Throttling\n"); + priv->thermal_throttle.advanced_tt = false; + } +} +EXPORT_SYMBOL(iwl_tt_initialize); + +/* cleanup thermal throttling management related memory and timer */ +void iwl_tt_exit(struct iwl_priv *priv) +{ + struct iwl_tt_mgmt *tt = &priv->thermal_throttle; + + /* stop ct_kill_exit_tm timer if activated */ + del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm); + /* stop ct_kill_waiting_tm timer if activated */ + del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm); + cancel_work_sync(&priv->tt_work); + cancel_work_sync(&priv->ct_enter); + cancel_work_sync(&priv->ct_exit); + + if (priv->thermal_throttle.advanced_tt) { + /* free advance thermal throttling memory */ + kfree(tt->restriction); + tt->restriction = NULL; + kfree(tt->transaction); + tt->transaction = NULL; + } +} +EXPORT_SYMBOL(iwl_tt_exit); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tt.h b/drivers/net/wireless/iwlwifi/iwl-agn-tt.h new file mode 100644 index 0000000..d550604 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tt.h @@ -0,0 +1,129 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2010 Intel Corporation. All rights reserved. + * + * Portions of this file are derived from the ipw3945 project, as well + * as portions of the ieee80211 subsystem header files. + * + * 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. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * Intel Linux Wireless + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + *****************************************************************************/ +#ifndef __iwl_tt_setting_h__ +#define __iwl_tt_setting_h__ + +#include "iwl-commands.h" + +#define IWL_ABSOLUTE_ZERO 0 +#define IWL_ABSOLUTE_MAX 0xFFFFFFFF +#define IWL_TT_INCREASE_MARGIN 5 +#define IWL_TT_CT_KILL_MARGIN 3 + +enum iwl_antenna_ok { + IWL_ANT_OK_NONE, + IWL_ANT_OK_SINGLE, + IWL_ANT_OK_MULTI, +}; + +/* Thermal Throttling State Machine states */ +enum iwl_tt_state { + IWL_TI_0, /* normal temperature, system power state */ + IWL_TI_1, /* high temperature detect, low power state */ + IWL_TI_2, /* higher temperature detected, lower power state */ + IWL_TI_CT_KILL, /* critical temperature detected, lowest power state */ + IWL_TI_STATE_MAX +}; + +/** + * struct iwl_tt_restriction - Thermal Throttling restriction table + * @tx_stream: number of tx stream allowed + * @is_ht: ht enable/disable + * @rx_stream: number of rx stream allowed + * + * This table is used by advance thermal throttling management + * based on the current thermal throttling state, and determines + * the number of tx/rx streams and the status of HT operation. + */ +struct iwl_tt_restriction { + enum iwl_antenna_ok tx_stream; + enum iwl_antenna_ok rx_stream; + bool is_ht; +}; + +/** + * struct iwl_tt_trans - Thermal Throttling transaction table + * @next_state: next thermal throttling mode + * @tt_low: low temperature threshold to change state + * @tt_high: high temperature threshold to change state + * + * This is used by the advanced thermal throttling algorithm + * to determine the next thermal state to go based on the + * current temperature. + */ +struct iwl_tt_trans { + enum iwl_tt_state next_state; + u32 tt_low; + u32 tt_high; +}; + +/** + * struct iwl_tt_mgnt - Thermal Throttling Management structure + * @advanced_tt: advanced thermal throttle required + * @state: current Thermal Throttling state + * @tt_power_mode: Thermal Throttling power mode index + * being used to set power level when + * when thermal throttling state != IWL_TI_0 + * the tt_power_mode should set to different + * power mode based on the current tt state + * @tt_previous_temperature: last measured temperature + * @iwl_tt_restriction: ptr to restriction tbl, used by advance + * thermal throttling to determine how many tx/rx streams + * should be used in tt state; and can HT be enabled or not + * @iwl_tt_trans: ptr to adv trans table, used by advance thermal throttling + * state transaction + * @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature + * @ct_kill_exit_tm: timer to exit thermal kill + */ +struct iwl_tt_mgmt { + enum iwl_tt_state state; + bool advanced_tt; + u8 tt_power_mode; + bool ct_kill_toggle; +#ifdef CONFIG_IWLWIFI_DEBUG + s32 tt_previous_temp; +#endif + struct iwl_tt_restriction *restriction; + struct iwl_tt_trans *transaction; + struct timer_list ct_kill_exit_tm; + struct timer_list ct_kill_waiting_tm; +}; + +u8 iwl_tt_current_power_mode(struct iwl_priv *priv); +bool iwl_tt_is_low_power_state(struct iwl_priv *priv); +bool iwl_ht_enabled(struct iwl_priv *priv); +bool iwl_check_for_ct_kill(struct iwl_priv *priv); +enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv); +enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv); +void iwl_tt_enter_ct_kill(struct iwl_priv *priv); +void iwl_tt_exit_ct_kill(struct iwl_priv *priv); +void iwl_tt_handler(struct iwl_priv *priv); +void iwl_tt_initialize(struct iwl_priv *priv); +void iwl_tt_exit(struct iwl_priv *priv); + +#endif /* __iwl_tt_setting_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 21a52ae0..bce77ee 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -2592,6 +2592,52 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, return pos; } +static void iwl_rf_kill_ct_config(struct iwl_priv *priv) +{ + struct iwl_ct_kill_config cmd; + struct iwl_ct_kill_throttling_config adv_cmd; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&priv->lock, flags); + iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, + CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); + spin_unlock_irqrestore(&priv->lock, flags); + priv->thermal_throttle.ct_kill_toggle = false; + + if (priv->cfg->support_ct_kill_exit) { + adv_cmd.critical_temperature_enter = + cpu_to_le32(priv->hw_params.ct_kill_threshold); + adv_cmd.critical_temperature_exit = + cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); + + ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, + sizeof(adv_cmd), &adv_cmd); + if (ret) + IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); + else + IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " + "succeeded, " + "critical temperature enter is %d," + "exit is %d\n", + priv->hw_params.ct_kill_threshold, + priv->hw_params.ct_kill_exit_threshold); + } else { + cmd.critical_temperature_R = + cpu_to_le32(priv->hw_params.ct_kill_threshold); + + ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, + sizeof(cmd), &cmd); + if (ret) + IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); + else + IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " + "succeeded, " + "critical temperature is %d\n", + priv->hw_params.ct_kill_threshold); + } +} + /** * iwl_alive_start - called after REPLY_ALIVE notification received * from protocol/runtime uCode (initialization uCode's diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index ccdf3c0..b5045c6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -1514,54 +1514,6 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) } EXPORT_SYMBOL(iwl_send_statistics_request); -void iwl_rf_kill_ct_config(struct iwl_priv *priv) -{ - struct iwl_ct_kill_config cmd; - struct iwl_ct_kill_throttling_config adv_cmd; - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&priv->lock, flags); - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); - spin_unlock_irqrestore(&priv->lock, flags); - priv->thermal_throttle.ct_kill_toggle = false; - - if (priv->cfg->support_ct_kill_exit) { - adv_cmd.critical_temperature_enter = - cpu_to_le32(priv->hw_params.ct_kill_threshold); - adv_cmd.critical_temperature_exit = - cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); - - ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, - sizeof(adv_cmd), &adv_cmd); - if (ret) - IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); - else - IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " - "succeeded, " - "critical temperature enter is %d," - "exit is %d\n", - priv->hw_params.ct_kill_threshold, - priv->hw_params.ct_kill_exit_threshold); - } else { - cmd.critical_temperature_R = - cpu_to_le32(priv->hw_params.ct_kill_threshold); - - ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, - sizeof(cmd), &cmd); - if (ret) - IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); - else - IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " - "succeeded, " - "critical temperature is %d\n", - priv->hw_params.ct_kill_threshold); - } -} -EXPORT_SYMBOL(iwl_rf_kill_ct_config); - - /* * CARD_STATE_CMD * diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 7f1aaf2..e6d127d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -136,6 +136,12 @@ struct iwl_temp_ops { void (*set_calib_version)(struct iwl_priv *priv); }; +struct iwl_tt_ops { + bool (*lower_power_detection)(struct iwl_priv *priv); + u8 (*tt_power_mode)(struct iwl_priv *priv); + bool (*ct_kill_check)(struct iwl_priv *priv); +}; + struct iwl_lib_ops { /* set hw dependent parameters */ int (*set_hw_params)(struct iwl_priv *priv); @@ -212,6 +218,9 @@ struct iwl_lib_ops { void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control); struct iwl_debugfs_ops debugfs_ops; + + /* thermal throttling */ + struct iwl_tt_ops tt_ops; }; struct iwl_led_ops { @@ -693,7 +702,6 @@ static inline int iwl_is_ready_rf(struct iwl_priv *priv) return iwl_is_ready(priv); } -extern void iwl_rf_kill_ct_config(struct iwl_priv *priv); extern void iwl_send_bt_config(struct iwl_priv *priv); extern int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear); diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 149619f..a2927b3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -47,6 +47,7 @@ #include "iwl-led.h" #include "iwl-power.h" #include "iwl-agn-rs.h" +#include "iwl-agn-tt.h" struct iwl_tx_queue; diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c index cda6a94..da1f2ae 100644 --- a/drivers/net/wireless/iwlwifi/iwl-power.c +++ b/drivers/net/wireless/iwlwifi/iwl-power.c @@ -192,47 +192,6 @@ static void iwl_static_sleep_cmd(struct iwl_priv *priv, IWL_DEBUG_POWER(priv, "Sleep command for index %d\n", lvl + 1); } -/* default Thermal Throttling transaction table - * Current state | Throttling Down | Throttling Up - *============================================================================= - * Condition Nxt State Condition Nxt State Condition Nxt State - *----------------------------------------------------------------------------- - * IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A - * IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0 - * IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1 - * IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0 - *============================================================================= - */ -static const struct iwl_tt_trans tt_range_0[IWL_TI_STATE_MAX - 1] = { - {IWL_TI_0, IWL_ABSOLUTE_ZERO, 104}, - {IWL_TI_1, 105, CT_KILL_THRESHOLD - 1}, - {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX} -}; -static const struct iwl_tt_trans tt_range_1[IWL_TI_STATE_MAX - 1] = { - {IWL_TI_0, IWL_ABSOLUTE_ZERO, 95}, - {IWL_TI_2, 110, CT_KILL_THRESHOLD - 1}, - {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX} -}; -static const struct iwl_tt_trans tt_range_2[IWL_TI_STATE_MAX - 1] = { - {IWL_TI_1, IWL_ABSOLUTE_ZERO, 100}, - {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}, - {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX} -}; -static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1] = { - {IWL_TI_0, IWL_ABSOLUTE_ZERO, CT_KILL_EXIT_THRESHOLD}, - {IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX}, - {IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX} -}; - -/* Advance Thermal Throttling default restriction table */ -static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = { - {IWL_ANT_OK_MULTI, IWL_ANT_OK_MULTI, true }, - {IWL_ANT_OK_SINGLE, IWL_ANT_OK_MULTI, true }, - {IWL_ANT_OK_SINGLE, IWL_ANT_OK_SINGLE, false }, - {IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false } -}; - - static void iwl_power_sleep_cam_cmd(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd) { @@ -308,7 +267,6 @@ static int iwl_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd) int iwl_power_update_mode(struct iwl_priv *priv, bool force) { int ret = 0; - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; bool enabled = priv->hw->conf.flags & IEEE80211_CONF_PS; bool update_chains; struct iwl_powertable_cmd cmd; @@ -325,9 +283,15 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force) else if (priv->cfg->supports_idle && priv->hw->conf.flags & IEEE80211_CONF_IDLE) iwl_static_sleep_cmd(priv, &cmd, IWL_POWER_INDEX_5, 20); - else if (tt->state >= IWL_TI_1) - iwl_static_sleep_cmd(priv, &cmd, tt->tt_power_mode, dtimper); - else if (!enabled) + else if (priv->cfg->ops->lib->tt_ops.lower_power_detection && + priv->cfg->ops->lib->tt_ops.tt_power_mode) { + if (priv->cfg->ops->lib->tt_ops.lower_power_detection(priv)) { + /* in thermal throttling low power state */ + iwl_static_sleep_cmd(priv, &cmd, + priv->cfg->ops->lib->tt_ops.tt_power_mode(priv), + dtimper); + } + } else if (!enabled) iwl_power_sleep_cam_cmd(priv, &cmd); else if (priv->power_data.debug_sleep_level_override >= 0) iwl_static_sleep_cmd(priv, &cmd, @@ -367,592 +331,6 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force) } EXPORT_SYMBOL(iwl_power_update_mode); -bool iwl_ht_enabled(struct iwl_priv *priv) -{ - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - struct iwl_tt_restriction *restriction; - - if (!priv->thermal_throttle.advanced_tt) - return true; - restriction = tt->restriction + tt->state; - return restriction->is_ht; -} -EXPORT_SYMBOL(iwl_ht_enabled); - -bool iwl_within_ct_kill_margin(struct iwl_priv *priv) -{ - s32 temp = priv->temperature; /* degrees CELSIUS except specified */ - bool within_margin = false; - - if (priv->cfg->temperature_kelvin) - temp = KELVIN_TO_CELSIUS(priv->temperature); - - if (!priv->thermal_throttle.advanced_tt) - within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >= - CT_KILL_THRESHOLD_LEGACY) ? true : false; - else - within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >= - CT_KILL_THRESHOLD) ? true : false; - return within_margin; -} - -enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv) -{ - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - struct iwl_tt_restriction *restriction; - - if (!priv->thermal_throttle.advanced_tt) - return IWL_ANT_OK_MULTI; - restriction = tt->restriction + tt->state; - return restriction->tx_stream; -} -EXPORT_SYMBOL(iwl_tx_ant_restriction); - -enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv) -{ - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - struct iwl_tt_restriction *restriction; - - if (!priv->thermal_throttle.advanced_tt) - return IWL_ANT_OK_MULTI; - restriction = tt->restriction + tt->state; - return restriction->rx_stream; -} - -#define CT_KILL_EXIT_DURATION (5) /* 5 seconds duration */ -#define CT_KILL_WAITING_DURATION (300) /* 300ms duration */ - -/* - * toggle the bit to wake up uCode and check the temperature - * if the temperature is below CT, uCode will stay awake and send card - * state notification with CT_KILL bit clear to inform Thermal Throttling - * Management to change state. Otherwise, uCode will go back to sleep - * without doing anything, driver should continue the 5 seconds timer - * to wake up uCode for temperature check until temperature drop below CT - */ -static void iwl_tt_check_exit_ct_kill(unsigned long data) -{ - struct iwl_priv *priv = (struct iwl_priv *)data; - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - unsigned long flags; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (tt->state == IWL_TI_CT_KILL) { - if (priv->thermal_throttle.ct_kill_toggle) { - iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); - priv->thermal_throttle.ct_kill_toggle = false; - } else { - iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, - CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); - priv->thermal_throttle.ct_kill_toggle = true; - } - iwl_read32(priv, CSR_UCODE_DRV_GP1); - spin_lock_irqsave(&priv->reg_lock, flags); - if (!iwl_grab_nic_access(priv)) - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, flags); - - /* Reschedule the ct_kill timer to occur in - * CT_KILL_EXIT_DURATION seconds to ensure we get a - * thermal update */ - IWL_DEBUG_POWER(priv, "schedule ct_kill exit timer\n"); - mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, jiffies + - CT_KILL_EXIT_DURATION * HZ); - } -} - -static void iwl_perform_ct_kill_task(struct iwl_priv *priv, - bool stop) -{ - if (stop) { - IWL_DEBUG_POWER(priv, "Stop all queues\n"); - if (priv->mac80211_registered) - ieee80211_stop_queues(priv->hw); - IWL_DEBUG_POWER(priv, - "Schedule 5 seconds CT_KILL Timer\n"); - mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, jiffies + - CT_KILL_EXIT_DURATION * HZ); - } else { - IWL_DEBUG_POWER(priv, "Wake all queues\n"); - if (priv->mac80211_registered) - ieee80211_wake_queues(priv->hw); - } -} - -static void iwl_tt_ready_for_ct_kill(unsigned long data) -{ - struct iwl_priv *priv = (struct iwl_priv *)data; - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - /* temperature timer expired, ready to go into CT_KILL state */ - if (tt->state != IWL_TI_CT_KILL) { - IWL_DEBUG_POWER(priv, "entering CT_KILL state when temperature timer expired\n"); - tt->state = IWL_TI_CT_KILL; - set_bit(STATUS_CT_KILL, &priv->status); - iwl_perform_ct_kill_task(priv, true); - } -} - -static void iwl_prepare_ct_kill_task(struct iwl_priv *priv) -{ - IWL_DEBUG_POWER(priv, "Prepare to enter IWL_TI_CT_KILL\n"); - /* make request to retrieve statistics information */ - iwl_send_statistics_request(priv, CMD_SYNC, false); - /* Reschedule the ct_kill wait timer */ - mod_timer(&priv->thermal_throttle.ct_kill_waiting_tm, - jiffies + msecs_to_jiffies(CT_KILL_WAITING_DURATION)); -} - -#define IWL_MINIMAL_POWER_THRESHOLD (CT_KILL_THRESHOLD_LEGACY) -#define IWL_REDUCED_PERFORMANCE_THRESHOLD_2 (100) -#define IWL_REDUCED_PERFORMANCE_THRESHOLD_1 (90) - -/* - * Legacy thermal throttling - * 1) Avoid NIC destruction due to high temperatures - * Chip will identify dangerously high temperatures that can - * harm the device and will power down - * 2) Avoid the NIC power down due to high temperature - * Throttle early enough to lower the power consumption before - * drastic steps are needed - */ -static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp, bool force) -{ - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - enum iwl_tt_state old_state; - -#ifdef CONFIG_IWLWIFI_DEBUG - if ((tt->tt_previous_temp) && - (temp > tt->tt_previous_temp) && - ((temp - tt->tt_previous_temp) > - IWL_TT_INCREASE_MARGIN)) { - IWL_DEBUG_POWER(priv, - "Temperature increase %d degree Celsius\n", - (temp - tt->tt_previous_temp)); - } -#endif - old_state = tt->state; - /* in Celsius */ - if (temp >= IWL_MINIMAL_POWER_THRESHOLD) - tt->state = IWL_TI_CT_KILL; - else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_2) - tt->state = IWL_TI_2; - else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_1) - tt->state = IWL_TI_1; - else - tt->state = IWL_TI_0; - -#ifdef CONFIG_IWLWIFI_DEBUG - tt->tt_previous_temp = temp; -#endif - /* stop ct_kill_waiting_tm timer */ - del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm); - if (tt->state != old_state) { - switch (tt->state) { - case IWL_TI_0: - /* - * When the system is ready to go back to IWL_TI_0 - * we only have to call iwl_power_update_mode() to - * do so. - */ - break; - case IWL_TI_1: - tt->tt_power_mode = IWL_POWER_INDEX_3; - break; - case IWL_TI_2: - tt->tt_power_mode = IWL_POWER_INDEX_4; - break; - default: - tt->tt_power_mode = IWL_POWER_INDEX_5; - break; - } - mutex_lock(&priv->mutex); - if (old_state == IWL_TI_CT_KILL) - clear_bit(STATUS_CT_KILL, &priv->status); - if (tt->state != IWL_TI_CT_KILL && - iwl_power_update_mode(priv, true)) { - /* TT state not updated - * try again during next temperature read - */ - if (old_state == IWL_TI_CT_KILL) - set_bit(STATUS_CT_KILL, &priv->status); - tt->state = old_state; - IWL_ERR(priv, "Cannot update power mode, " - "TT state not updated\n"); - } else { - if (tt->state == IWL_TI_CT_KILL) { - if (force) { - set_bit(STATUS_CT_KILL, &priv->status); - iwl_perform_ct_kill_task(priv, true); - } else { - iwl_prepare_ct_kill_task(priv); - tt->state = old_state; - } - } else if (old_state == IWL_TI_CT_KILL && - tt->state != IWL_TI_CT_KILL) - iwl_perform_ct_kill_task(priv, false); - IWL_DEBUG_POWER(priv, "Temperature state changed %u\n", - tt->state); - IWL_DEBUG_POWER(priv, "Power Index change to %u\n", - tt->tt_power_mode); - } - mutex_unlock(&priv->mutex); - } -} - -/* - * Advance thermal throttling - * 1) Avoid NIC destruction due to high temperatures - * Chip will identify dangerously high temperatures that can - * harm the device and will power down - * 2) Avoid the NIC power down due to high temperature - * Throttle early enough to lower the power consumption before - * drastic steps are needed - * Actions include relaxing the power down sleep thresholds and - * decreasing the number of TX streams - * 3) Avoid throughput performance impact as much as possible - * - *============================================================================= - * Condition Nxt State Condition Nxt State Condition Nxt State - *----------------------------------------------------------------------------- - * IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A - * IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0 - * IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1 - * IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0 - *============================================================================= - */ -static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp, bool force) -{ - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - int i; - bool changed = false; - enum iwl_tt_state old_state; - struct iwl_tt_trans *transaction; - - old_state = tt->state; - for (i = 0; i < IWL_TI_STATE_MAX - 1; i++) { - /* based on the current TT state, - * find the curresponding transaction table - * each table has (IWL_TI_STATE_MAX - 1) entries - * tt->transaction + ((old_state * (IWL_TI_STATE_MAX - 1)) - * will advance to the correct table. - * then based on the current temperature - * find the next state need to transaction to - * go through all the possible (IWL_TI_STATE_MAX - 1) entries - * in the current table to see if transaction is needed - */ - transaction = tt->transaction + - ((old_state * (IWL_TI_STATE_MAX - 1)) + i); - if (temp >= transaction->tt_low && - temp <= transaction->tt_high) { -#ifdef CONFIG_IWLWIFI_DEBUG - if ((tt->tt_previous_temp) && - (temp > tt->tt_previous_temp) && - ((temp - tt->tt_previous_temp) > - IWL_TT_INCREASE_MARGIN)) { - IWL_DEBUG_POWER(priv, - "Temperature increase %d " - "degree Celsius\n", - (temp - tt->tt_previous_temp)); - } - tt->tt_previous_temp = temp; -#endif - if (old_state != - transaction->next_state) { - changed = true; - tt->state = - transaction->next_state; - } - break; - } - } - /* stop ct_kill_waiting_tm timer */ - del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm); - if (changed) { - struct iwl_rxon_cmd *rxon = &priv->staging_rxon; - - if (tt->state >= IWL_TI_1) { - /* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */ - tt->tt_power_mode = IWL_POWER_INDEX_5; - if (!iwl_ht_enabled(priv)) - /* disable HT */ - rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | - RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | - RXON_FLG_HT40_PROT_MSK | - RXON_FLG_HT_PROT_MSK); - else { - /* check HT capability and set - * according to the system HT capability - * in case get disabled before */ - iwl_set_rxon_ht(priv, &priv->current_ht_config); - } - - } else { - /* - * restore system power setting -- it will be - * recalculated automatically. - */ - - /* check HT capability and set - * according to the system HT capability - * in case get disabled before */ - iwl_set_rxon_ht(priv, &priv->current_ht_config); - } - mutex_lock(&priv->mutex); - if (old_state == IWL_TI_CT_KILL) - clear_bit(STATUS_CT_KILL, &priv->status); - if (tt->state != IWL_TI_CT_KILL && - iwl_power_update_mode(priv, true)) { - /* TT state not updated - * try again during next temperature read - */ - IWL_ERR(priv, "Cannot update power mode, " - "TT state not updated\n"); - if (old_state == IWL_TI_CT_KILL) - set_bit(STATUS_CT_KILL, &priv->status); - tt->state = old_state; - } else { - IWL_DEBUG_POWER(priv, - "Thermal Throttling to new state: %u\n", - tt->state); - if (old_state != IWL_TI_CT_KILL && - tt->state == IWL_TI_CT_KILL) { - if (force) { - IWL_DEBUG_POWER(priv, - "Enter IWL_TI_CT_KILL\n"); - set_bit(STATUS_CT_KILL, &priv->status); - iwl_perform_ct_kill_task(priv, true); - } else { - iwl_prepare_ct_kill_task(priv); - tt->state = old_state; - } - } else if (old_state == IWL_TI_CT_KILL && - tt->state != IWL_TI_CT_KILL) { - IWL_DEBUG_POWER(priv, "Exit IWL_TI_CT_KILL\n"); - iwl_perform_ct_kill_task(priv, false); - } - } - mutex_unlock(&priv->mutex); - } -} - -/* Card State Notification indicated reach critical temperature - * if PSP not enable, no Thermal Throttling function will be performed - * just set the GP1 bit to acknowledge the event - * otherwise, go into IWL_TI_CT_KILL state - * since Card State Notification will not provide any temperature reading - * for Legacy mode - * so just pass the CT_KILL temperature to iwl_legacy_tt_handler() - * for advance mode - * pass CT_KILL_THRESHOLD+1 to make sure move into IWL_TI_CT_KILL state - */ -static void iwl_bg_ct_enter(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_enter); - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (!iwl_is_ready(priv)) - return; - - if (tt->state != IWL_TI_CT_KILL) { - IWL_ERR(priv, "Device reached critical temperature " - "- ucode going to sleep!\n"); - if (!priv->thermal_throttle.advanced_tt) - iwl_legacy_tt_handler(priv, - IWL_MINIMAL_POWER_THRESHOLD, - true); - else - iwl_advance_tt_handler(priv, - CT_KILL_THRESHOLD + 1, true); - } -} - -/* Card State Notification indicated out of critical temperature - * since Card State Notification will not provide any temperature reading - * so pass the IWL_REDUCED_PERFORMANCE_THRESHOLD_2 temperature - * to iwl_legacy_tt_handler() to get out of IWL_CT_KILL state - */ -static void iwl_bg_ct_exit(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_exit); - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (!iwl_is_ready(priv)) - return; - - /* stop ct_kill_exit_tm timer */ - del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm); - - if (tt->state == IWL_TI_CT_KILL) { - IWL_ERR(priv, - "Device temperature below critical" - "- ucode awake!\n"); - /* - * exit from CT_KILL state - * reset the current temperature reading - */ - priv->temperature = 0; - if (!priv->thermal_throttle.advanced_tt) - iwl_legacy_tt_handler(priv, - IWL_REDUCED_PERFORMANCE_THRESHOLD_2, - true); - else - iwl_advance_tt_handler(priv, CT_KILL_EXIT_THRESHOLD, - true); - } -} - -void iwl_tt_enter_ct_kill(struct iwl_priv *priv) -{ - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - IWL_DEBUG_POWER(priv, "Queueing critical temperature enter.\n"); - queue_work(priv->workqueue, &priv->ct_enter); -} -EXPORT_SYMBOL(iwl_tt_enter_ct_kill); - -void iwl_tt_exit_ct_kill(struct iwl_priv *priv) -{ - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - IWL_DEBUG_POWER(priv, "Queueing critical temperature exit.\n"); - queue_work(priv->workqueue, &priv->ct_exit); -} -EXPORT_SYMBOL(iwl_tt_exit_ct_kill); - -static void iwl_bg_tt_work(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, tt_work); - s32 temp = priv->temperature; /* degrees CELSIUS except specified */ - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - if (priv->cfg->temperature_kelvin) - temp = KELVIN_TO_CELSIUS(priv->temperature); - - if (!priv->thermal_throttle.advanced_tt) - iwl_legacy_tt_handler(priv, temp, false); - else - iwl_advance_tt_handler(priv, temp, false); -} - -void iwl_tt_handler(struct iwl_priv *priv) -{ - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - IWL_DEBUG_POWER(priv, "Queueing thermal throttling work.\n"); - queue_work(priv->workqueue, &priv->tt_work); -} -EXPORT_SYMBOL(iwl_tt_handler); - -/* Thermal throttling initialization - * For advance thermal throttling: - * Initialize Thermal Index and temperature threshold table - * Initialize thermal throttling restriction table - */ -void iwl_tt_initialize(struct iwl_priv *priv) -{ - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1); - struct iwl_tt_trans *transaction; - - IWL_DEBUG_POWER(priv, "Initialize Thermal Throttling\n"); - - memset(tt, 0, sizeof(struct iwl_tt_mgmt)); - - tt->state = IWL_TI_0; - init_timer(&priv->thermal_throttle.ct_kill_exit_tm); - priv->thermal_throttle.ct_kill_exit_tm.data = (unsigned long)priv; - priv->thermal_throttle.ct_kill_exit_tm.function = - iwl_tt_check_exit_ct_kill; - init_timer(&priv->thermal_throttle.ct_kill_waiting_tm); - priv->thermal_throttle.ct_kill_waiting_tm.data = (unsigned long)priv; - priv->thermal_throttle.ct_kill_waiting_tm.function = - iwl_tt_ready_for_ct_kill; - /* setup deferred ct kill work */ - INIT_WORK(&priv->tt_work, iwl_bg_tt_work); - INIT_WORK(&priv->ct_enter, iwl_bg_ct_enter); - INIT_WORK(&priv->ct_exit, iwl_bg_ct_exit); - - if (priv->cfg->adv_thermal_throttle) { - IWL_DEBUG_POWER(priv, "Advanced Thermal Throttling\n"); - tt->restriction = kzalloc(sizeof(struct iwl_tt_restriction) * - IWL_TI_STATE_MAX, GFP_KERNEL); - tt->transaction = kzalloc(sizeof(struct iwl_tt_trans) * - IWL_TI_STATE_MAX * (IWL_TI_STATE_MAX - 1), - GFP_KERNEL); - if (!tt->restriction || !tt->transaction) { - IWL_ERR(priv, "Fallback to Legacy Throttling\n"); - priv->thermal_throttle.advanced_tt = false; - kfree(tt->restriction); - tt->restriction = NULL; - kfree(tt->transaction); - tt->transaction = NULL; - } else { - transaction = tt->transaction + - (IWL_TI_0 * (IWL_TI_STATE_MAX - 1)); - memcpy(transaction, &tt_range_0[0], size); - transaction = tt->transaction + - (IWL_TI_1 * (IWL_TI_STATE_MAX - 1)); - memcpy(transaction, &tt_range_1[0], size); - transaction = tt->transaction + - (IWL_TI_2 * (IWL_TI_STATE_MAX - 1)); - memcpy(transaction, &tt_range_2[0], size); - transaction = tt->transaction + - (IWL_TI_CT_KILL * (IWL_TI_STATE_MAX - 1)); - memcpy(transaction, &tt_range_3[0], size); - size = sizeof(struct iwl_tt_restriction) * - IWL_TI_STATE_MAX; - memcpy(tt->restriction, - &restriction_range[0], size); - priv->thermal_throttle.advanced_tt = true; - } - } else { - IWL_DEBUG_POWER(priv, "Legacy Thermal Throttling\n"); - priv->thermal_throttle.advanced_tt = false; - } -} -EXPORT_SYMBOL(iwl_tt_initialize); - -/* cleanup thermal throttling management related memory and timer */ -void iwl_tt_exit(struct iwl_priv *priv) -{ - struct iwl_tt_mgmt *tt = &priv->thermal_throttle; - - /* stop ct_kill_exit_tm timer if activated */ - del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm); - /* stop ct_kill_waiting_tm timer if activated */ - del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm); - cancel_work_sync(&priv->tt_work); - cancel_work_sync(&priv->ct_enter); - cancel_work_sync(&priv->ct_exit); - - if (priv->thermal_throttle.advanced_tt) { - /* free advance thermal throttling memory */ - kfree(tt->restriction); - tt->restriction = NULL; - kfree(tt->transaction); - tt->transaction = NULL; - } -} -EXPORT_SYMBOL(iwl_tt_exit); - /* initialize to default */ void iwl_power_initialize(struct iwl_priv *priv) { diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h index 5db91c1..df81565 100644 --- a/drivers/net/wireless/iwlwifi/iwl-power.h +++ b/drivers/net/wireless/iwlwifi/iwl-power.h @@ -30,90 +30,6 @@ #include "iwl-commands.h" -#define IWL_ABSOLUTE_ZERO 0 -#define IWL_ABSOLUTE_MAX 0xFFFFFFFF -#define IWL_TT_INCREASE_MARGIN 5 -#define IWL_TT_CT_KILL_MARGIN 3 - -enum iwl_antenna_ok { - IWL_ANT_OK_NONE, - IWL_ANT_OK_SINGLE, - IWL_ANT_OK_MULTI, -}; - -/* Thermal Throttling State Machine states */ -enum iwl_tt_state { - IWL_TI_0, /* normal temperature, system power state */ - IWL_TI_1, /* high temperature detect, low power state */ - IWL_TI_2, /* higher temperature detected, lower power state */ - IWL_TI_CT_KILL, /* critical temperature detected, lowest power state */ - IWL_TI_STATE_MAX -}; - -/** - * struct iwl_tt_restriction - Thermal Throttling restriction table - * @tx_stream: number of tx stream allowed - * @is_ht: ht enable/disable - * @rx_stream: number of rx stream allowed - * - * This table is used by advance thermal throttling management - * based on the current thermal throttling state, and determines - * the number of tx/rx streams and the status of HT operation. - */ -struct iwl_tt_restriction { - enum iwl_antenna_ok tx_stream; - enum iwl_antenna_ok rx_stream; - bool is_ht; -}; - -/** - * struct iwl_tt_trans - Thermal Throttling transaction table - * @next_state: next thermal throttling mode - * @tt_low: low temperature threshold to change state - * @tt_high: high temperature threshold to change state - * - * This is used by the advanced thermal throttling algorithm - * to determine the next thermal state to go based on the - * current temperature. - */ -struct iwl_tt_trans { - enum iwl_tt_state next_state; - u32 tt_low; - u32 tt_high; -}; - -/** - * struct iwl_tt_mgnt - Thermal Throttling Management structure - * @advanced_tt: advanced thermal throttle required - * @state: current Thermal Throttling state - * @tt_power_mode: Thermal Throttling power mode index - * being used to set power level when - * when thermal throttling state != IWL_TI_0 - * the tt_power_mode should set to different - * power mode based on the current tt state - * @tt_previous_temperature: last measured temperature - * @iwl_tt_restriction: ptr to restriction tbl, used by advance - * thermal throttling to determine how many tx/rx streams - * should be used in tt state; and can HT be enabled or not - * @iwl_tt_trans: ptr to adv trans table, used by advance thermal throttling - * state transaction - * @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature - * @ct_kill_exit_tm: timer to exit thermal kill - */ -struct iwl_tt_mgmt { - enum iwl_tt_state state; - bool advanced_tt; - u8 tt_power_mode; - bool ct_kill_toggle; -#ifdef CONFIG_IWLWIFI_DEBUG - s32 tt_previous_temp; -#endif - struct iwl_tt_restriction *restriction; - struct iwl_tt_trans *transaction; - struct timer_list ct_kill_exit_tm; - struct timer_list ct_kill_waiting_tm; -}; - enum iwl_power_level { IWL_POWER_INDEX_1, IWL_POWER_INDEX_2, @@ -130,15 +46,6 @@ struct iwl_power_mgr { }; int iwl_power_update_mode(struct iwl_priv *priv, bool force); -bool iwl_ht_enabled(struct iwl_priv *priv); -bool iwl_within_ct_kill_margin(struct iwl_priv *priv); -enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv); -enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv); -void iwl_tt_enter_ct_kill(struct iwl_priv *priv); -void iwl_tt_exit_ct_kill(struct iwl_priv *priv); -void iwl_tt_handler(struct iwl_priv *priv); -void iwl_tt_initialize(struct iwl_priv *priv); -void iwl_tt_exit(struct iwl_priv *priv); void iwl_power_initialize(struct iwl_priv *priv); extern bool no_sleep_autoadjust; diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index a81989c..c308dab 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -422,6 +422,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) int len; u32 idx; u16 fix_size; + bool is_ct_kill = false; cmd->len = priv->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len); fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr)); @@ -443,9 +444,11 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) if (iwl_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) { IWL_ERR(priv, "No space in command queue\n"); - if (iwl_within_ct_kill_margin(priv)) - iwl_tt_enter_ct_kill(priv); - else { + if (priv->cfg->ops->lib->tt_ops.ct_kill_check) { + is_ct_kill = + priv->cfg->ops->lib->tt_ops.ct_kill_check(priv); + } + if (!is_ct_kill) { IWL_ERR(priv, "Restarting adapter due to queue full\n"); queue_work(priv->workqueue, &priv->restart); } -- cgit v0.10.2