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@@ -192,47 +192,6 @@ static void iwl_static_sleep_cmd(struct iwl_priv *priv,
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IWL_DEBUG_POWER(priv, "Sleep command for index %d\n", lvl + 1);
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}
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-/* default Thermal Throttling transaction table
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- * Current state | Throttling Down | Throttling Up
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- *=============================================================================
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- * Condition Nxt State Condition Nxt State Condition Nxt State
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- *-----------------------------------------------------------------------------
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- * IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A
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- * IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0
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- * IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1
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- * IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0
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- *=============================================================================
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- */
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-static const struct iwl_tt_trans tt_range_0[IWL_TI_STATE_MAX - 1] = {
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- {IWL_TI_0, IWL_ABSOLUTE_ZERO, 104},
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- {IWL_TI_1, 105, CT_KILL_THRESHOLD - 1},
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- {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
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-};
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-static const struct iwl_tt_trans tt_range_1[IWL_TI_STATE_MAX - 1] = {
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- {IWL_TI_0, IWL_ABSOLUTE_ZERO, 95},
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- {IWL_TI_2, 110, CT_KILL_THRESHOLD - 1},
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- {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
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-};
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-static const struct iwl_tt_trans tt_range_2[IWL_TI_STATE_MAX - 1] = {
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- {IWL_TI_1, IWL_ABSOLUTE_ZERO, 100},
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- {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX},
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- {IWL_TI_CT_KILL, CT_KILL_THRESHOLD, IWL_ABSOLUTE_MAX}
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-};
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-static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1] = {
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- {IWL_TI_0, IWL_ABSOLUTE_ZERO, CT_KILL_EXIT_THRESHOLD},
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- {IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX},
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- {IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
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-};
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-
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-/* Advance Thermal Throttling default restriction table */
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-static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
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- {IWL_ANT_OK_MULTI, IWL_ANT_OK_MULTI, true },
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- {IWL_ANT_OK_SINGLE, IWL_ANT_OK_MULTI, true },
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- {IWL_ANT_OK_SINGLE, IWL_ANT_OK_SINGLE, false },
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- {IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false }
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-};
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-
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-
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static void iwl_power_sleep_cam_cmd(struct iwl_priv *priv,
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struct iwl_powertable_cmd *cmd)
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{
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@@ -308,7 +267,6 @@ static int iwl_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd)
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int iwl_power_update_mode(struct iwl_priv *priv, bool force)
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{
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int ret = 0;
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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bool enabled = priv->hw->conf.flags & IEEE80211_CONF_PS;
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bool update_chains;
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struct iwl_powertable_cmd cmd;
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@@ -325,9 +283,13 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
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else if (priv->cfg->supports_idle &&
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priv->hw->conf.flags & IEEE80211_CONF_IDLE)
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iwl_static_sleep_cmd(priv, &cmd, IWL_POWER_INDEX_5, 20);
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- else if (tt->state >= IWL_TI_1)
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- iwl_static_sleep_cmd(priv, &cmd, tt->tt_power_mode, dtimper);
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- else if (!enabled)
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+ else if (priv->cfg->ops->lib->tt_ops.lower_power_detection &&
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+ priv->cfg->ops->lib->tt_ops.tt_power_mode &&
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+ priv->cfg->ops->lib->tt_ops.lower_power_detection(priv)) {
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+ /* in thermal throttling low power state */
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+ iwl_static_sleep_cmd(priv, &cmd,
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+ priv->cfg->ops->lib->tt_ops.tt_power_mode(priv), dtimper);
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+ } else if (!enabled)
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iwl_power_sleep_cam_cmd(priv, &cmd);
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else if (priv->power_data.debug_sleep_level_override >= 0)
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iwl_static_sleep_cmd(priv, &cmd,
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@@ -367,592 +329,6 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
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}
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EXPORT_SYMBOL(iwl_power_update_mode);
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-bool iwl_ht_enabled(struct iwl_priv *priv)
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-{
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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- struct iwl_tt_restriction *restriction;
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-
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- if (!priv->thermal_throttle.advanced_tt)
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- return true;
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- restriction = tt->restriction + tt->state;
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- return restriction->is_ht;
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-}
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-EXPORT_SYMBOL(iwl_ht_enabled);
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-
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-bool iwl_within_ct_kill_margin(struct iwl_priv *priv)
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-{
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- s32 temp = priv->temperature; /* degrees CELSIUS except specified */
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- bool within_margin = false;
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-
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- if (priv->cfg->temperature_kelvin)
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- temp = KELVIN_TO_CELSIUS(priv->temperature);
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-
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- if (!priv->thermal_throttle.advanced_tt)
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- within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >=
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- CT_KILL_THRESHOLD_LEGACY) ? true : false;
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- else
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- within_margin = ((temp + IWL_TT_CT_KILL_MARGIN) >=
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- CT_KILL_THRESHOLD) ? true : false;
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- return within_margin;
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-}
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-
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-enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv)
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-{
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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- struct iwl_tt_restriction *restriction;
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-
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- if (!priv->thermal_throttle.advanced_tt)
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- return IWL_ANT_OK_MULTI;
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- restriction = tt->restriction + tt->state;
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- return restriction->tx_stream;
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-}
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-EXPORT_SYMBOL(iwl_tx_ant_restriction);
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-
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-enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv)
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-{
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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- struct iwl_tt_restriction *restriction;
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-
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- if (!priv->thermal_throttle.advanced_tt)
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- return IWL_ANT_OK_MULTI;
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- restriction = tt->restriction + tt->state;
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- return restriction->rx_stream;
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-}
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-
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-#define CT_KILL_EXIT_DURATION (5) /* 5 seconds duration */
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-#define CT_KILL_WAITING_DURATION (300) /* 300ms duration */
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-
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-/*
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- * toggle the bit to wake up uCode and check the temperature
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- * if the temperature is below CT, uCode will stay awake and send card
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- * state notification with CT_KILL bit clear to inform Thermal Throttling
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- * Management to change state. Otherwise, uCode will go back to sleep
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- * without doing anything, driver should continue the 5 seconds timer
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- * to wake up uCode for temperature check until temperature drop below CT
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- */
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-static void iwl_tt_check_exit_ct_kill(unsigned long data)
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-{
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- struct iwl_priv *priv = (struct iwl_priv *)data;
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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- unsigned long flags;
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-
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- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
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- return;
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-
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- if (tt->state == IWL_TI_CT_KILL) {
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- if (priv->thermal_throttle.ct_kill_toggle) {
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- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
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- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
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- priv->thermal_throttle.ct_kill_toggle = false;
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- } else {
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- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
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- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
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- priv->thermal_throttle.ct_kill_toggle = true;
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- }
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- iwl_read32(priv, CSR_UCODE_DRV_GP1);
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- spin_lock_irqsave(&priv->reg_lock, flags);
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- if (!iwl_grab_nic_access(priv))
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- iwl_release_nic_access(priv);
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- spin_unlock_irqrestore(&priv->reg_lock, flags);
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-
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- /* Reschedule the ct_kill timer to occur in
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- * CT_KILL_EXIT_DURATION seconds to ensure we get a
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- * thermal update */
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- IWL_DEBUG_POWER(priv, "schedule ct_kill exit timer\n");
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- mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, jiffies +
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- CT_KILL_EXIT_DURATION * HZ);
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- }
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-}
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-
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-static void iwl_perform_ct_kill_task(struct iwl_priv *priv,
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- bool stop)
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-{
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- if (stop) {
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- IWL_DEBUG_POWER(priv, "Stop all queues\n");
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- if (priv->mac80211_registered)
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- ieee80211_stop_queues(priv->hw);
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- IWL_DEBUG_POWER(priv,
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- "Schedule 5 seconds CT_KILL Timer\n");
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- mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, jiffies +
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- CT_KILL_EXIT_DURATION * HZ);
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- } else {
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- IWL_DEBUG_POWER(priv, "Wake all queues\n");
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- if (priv->mac80211_registered)
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- ieee80211_wake_queues(priv->hw);
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- }
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-}
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-
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-static void iwl_tt_ready_for_ct_kill(unsigned long data)
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-{
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- struct iwl_priv *priv = (struct iwl_priv *)data;
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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-
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- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
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- return;
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-
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- /* temperature timer expired, ready to go into CT_KILL state */
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- if (tt->state != IWL_TI_CT_KILL) {
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- IWL_DEBUG_POWER(priv, "entering CT_KILL state when temperature timer expired\n");
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- tt->state = IWL_TI_CT_KILL;
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- set_bit(STATUS_CT_KILL, &priv->status);
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- iwl_perform_ct_kill_task(priv, true);
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- }
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-}
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-
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-static void iwl_prepare_ct_kill_task(struct iwl_priv *priv)
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-{
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- IWL_DEBUG_POWER(priv, "Prepare to enter IWL_TI_CT_KILL\n");
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- /* make request to retrieve statistics information */
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- iwl_send_statistics_request(priv, CMD_SYNC, false);
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- /* Reschedule the ct_kill wait timer */
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- mod_timer(&priv->thermal_throttle.ct_kill_waiting_tm,
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- jiffies + msecs_to_jiffies(CT_KILL_WAITING_DURATION));
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-}
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-
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-#define IWL_MINIMAL_POWER_THRESHOLD (CT_KILL_THRESHOLD_LEGACY)
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-#define IWL_REDUCED_PERFORMANCE_THRESHOLD_2 (100)
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-#define IWL_REDUCED_PERFORMANCE_THRESHOLD_1 (90)
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-
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-/*
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- * Legacy thermal throttling
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- * 1) Avoid NIC destruction due to high temperatures
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- * Chip will identify dangerously high temperatures that can
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- * harm the device and will power down
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- * 2) Avoid the NIC power down due to high temperature
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- * Throttle early enough to lower the power consumption before
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- * drastic steps are needed
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- */
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-static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp, bool force)
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-{
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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- enum iwl_tt_state old_state;
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-
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-#ifdef CONFIG_IWLWIFI_DEBUG
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- if ((tt->tt_previous_temp) &&
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- (temp > tt->tt_previous_temp) &&
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- ((temp - tt->tt_previous_temp) >
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- IWL_TT_INCREASE_MARGIN)) {
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- IWL_DEBUG_POWER(priv,
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- "Temperature increase %d degree Celsius\n",
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- (temp - tt->tt_previous_temp));
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- }
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-#endif
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- old_state = tt->state;
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- /* in Celsius */
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- if (temp >= IWL_MINIMAL_POWER_THRESHOLD)
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- tt->state = IWL_TI_CT_KILL;
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- else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_2)
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- tt->state = IWL_TI_2;
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- else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_1)
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- tt->state = IWL_TI_1;
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- else
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- tt->state = IWL_TI_0;
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-
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-#ifdef CONFIG_IWLWIFI_DEBUG
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- tt->tt_previous_temp = temp;
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-#endif
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- /* stop ct_kill_waiting_tm timer */
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- del_timer_sync(&priv->thermal_throttle.ct_kill_waiting_tm);
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- if (tt->state != old_state) {
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- switch (tt->state) {
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- case IWL_TI_0:
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- /*
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- * When the system is ready to go back to IWL_TI_0
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- * we only have to call iwl_power_update_mode() to
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- * do so.
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- */
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- break;
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- case IWL_TI_1:
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- tt->tt_power_mode = IWL_POWER_INDEX_3;
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- break;
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- case IWL_TI_2:
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- tt->tt_power_mode = IWL_POWER_INDEX_4;
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- break;
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- default:
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- tt->tt_power_mode = IWL_POWER_INDEX_5;
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- break;
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- }
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- mutex_lock(&priv->mutex);
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- if (old_state == IWL_TI_CT_KILL)
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- clear_bit(STATUS_CT_KILL, &priv->status);
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- if (tt->state != IWL_TI_CT_KILL &&
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- iwl_power_update_mode(priv, true)) {
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- /* TT state not updated
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- * try again during next temperature read
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- */
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- if (old_state == IWL_TI_CT_KILL)
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- set_bit(STATUS_CT_KILL, &priv->status);
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- tt->state = old_state;
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- IWL_ERR(priv, "Cannot update power mode, "
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- "TT state not updated\n");
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- } else {
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- if (tt->state == IWL_TI_CT_KILL) {
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- if (force) {
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- set_bit(STATUS_CT_KILL, &priv->status);
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- iwl_perform_ct_kill_task(priv, true);
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- } else {
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- iwl_prepare_ct_kill_task(priv);
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- tt->state = old_state;
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- }
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- } else if (old_state == IWL_TI_CT_KILL &&
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- tt->state != IWL_TI_CT_KILL)
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- iwl_perform_ct_kill_task(priv, false);
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- IWL_DEBUG_POWER(priv, "Temperature state changed %u\n",
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- tt->state);
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- IWL_DEBUG_POWER(priv, "Power Index change to %u\n",
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- tt->tt_power_mode);
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- }
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- mutex_unlock(&priv->mutex);
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- }
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-}
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-
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-/*
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- * Advance thermal throttling
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- * 1) Avoid NIC destruction due to high temperatures
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- * Chip will identify dangerously high temperatures that can
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- * harm the device and will power down
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- * 2) Avoid the NIC power down due to high temperature
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- * Throttle early enough to lower the power consumption before
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- * drastic steps are needed
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- * Actions include relaxing the power down sleep thresholds and
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- * decreasing the number of TX streams
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- * 3) Avoid throughput performance impact as much as possible
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- *
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- *=============================================================================
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- * Condition Nxt State Condition Nxt State Condition Nxt State
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- *-----------------------------------------------------------------------------
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- * IWL_TI_0 T >= 114 CT_KILL 114>T>=105 TI_1 N/A N/A
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- * IWL_TI_1 T >= 114 CT_KILL 114>T>=110 TI_2 T<=95 TI_0
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- * IWL_TI_2 T >= 114 CT_KILL T<=100 TI_1
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- * IWL_CT_KILL N/A N/A N/A N/A T<=95 TI_0
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- *=============================================================================
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- */
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-static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp, bool force)
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-{
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- struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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- int i;
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- bool changed = false;
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- enum iwl_tt_state old_state;
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- struct iwl_tt_trans *transaction;
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-
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- old_state = tt->state;
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- 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)
|
|
|
{
|