mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
903 lines
22 KiB
903 lines
22 KiB
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause |
|
/* |
|
* Copyright (C) 2012-2014, 2019-2020 Intel Corporation |
|
* Copyright (C) 2013-2014 Intel Mobile Communications GmbH |
|
* Copyright (C) 2015-2016 Intel Deutschland GmbH |
|
*/ |
|
#include <linux/sort.h> |
|
|
|
#include "mvm.h" |
|
|
|
#define IWL_MVM_TEMP_NOTIF_WAIT_TIMEOUT HZ |
|
|
|
void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm) |
|
{ |
|
struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; |
|
u32 duration = tt->params.ct_kill_duration; |
|
|
|
if (test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) |
|
return; |
|
|
|
IWL_ERR(mvm, "Enter CT Kill\n"); |
|
iwl_mvm_set_hw_ctkill_state(mvm, true); |
|
|
|
if (!iwl_mvm_is_tt_in_fw(mvm)) { |
|
tt->throttle = false; |
|
tt->dynamic_smps = false; |
|
} |
|
|
|
/* Don't schedule an exit work if we're in test mode, since |
|
* the temperature will not change unless we manually set it |
|
* again (or disable testing). |
|
*/ |
|
if (!mvm->temperature_test) |
|
schedule_delayed_work(&tt->ct_kill_exit, |
|
round_jiffies_relative(duration * HZ)); |
|
} |
|
|
|
static void iwl_mvm_exit_ctkill(struct iwl_mvm *mvm) |
|
{ |
|
if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) |
|
return; |
|
|
|
IWL_ERR(mvm, "Exit CT Kill\n"); |
|
iwl_mvm_set_hw_ctkill_state(mvm, false); |
|
} |
|
|
|
static void iwl_mvm_tt_temp_changed(struct iwl_mvm *mvm, u32 temp) |
|
{ |
|
/* ignore the notification if we are in test mode */ |
|
if (mvm->temperature_test) |
|
return; |
|
|
|
if (mvm->temperature == temp) |
|
return; |
|
|
|
mvm->temperature = temp; |
|
iwl_mvm_tt_handler(mvm); |
|
} |
|
|
|
static int iwl_mvm_temp_notif_parse(struct iwl_mvm *mvm, |
|
struct iwl_rx_packet *pkt) |
|
{ |
|
struct iwl_dts_measurement_notif_v1 *notif_v1; |
|
int len = iwl_rx_packet_payload_len(pkt); |
|
int temp; |
|
|
|
/* we can use notif_v1 only, because v2 only adds an additional |
|
* parameter, which is not used in this function. |
|
*/ |
|
if (WARN_ON_ONCE(len < sizeof(*notif_v1))) { |
|
IWL_ERR(mvm, "Invalid DTS_MEASUREMENT_NOTIFICATION\n"); |
|
return -EINVAL; |
|
} |
|
|
|
notif_v1 = (void *)pkt->data; |
|
|
|
temp = le32_to_cpu(notif_v1->temp); |
|
|
|
/* shouldn't be negative, but since it's s32, make sure it isn't */ |
|
if (WARN_ON_ONCE(temp < 0)) |
|
temp = 0; |
|
|
|
IWL_DEBUG_TEMP(mvm, "DTS_MEASUREMENT_NOTIFICATION - %d\n", temp); |
|
|
|
return temp; |
|
} |
|
|
|
static bool iwl_mvm_temp_notif_wait(struct iwl_notif_wait_data *notif_wait, |
|
struct iwl_rx_packet *pkt, void *data) |
|
{ |
|
struct iwl_mvm *mvm = |
|
container_of(notif_wait, struct iwl_mvm, notif_wait); |
|
int *temp = data; |
|
int ret; |
|
|
|
ret = iwl_mvm_temp_notif_parse(mvm, pkt); |
|
if (ret < 0) |
|
return true; |
|
|
|
*temp = ret; |
|
|
|
return true; |
|
} |
|
|
|
void iwl_mvm_temp_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
struct iwl_dts_measurement_notif_v2 *notif_v2; |
|
int len = iwl_rx_packet_payload_len(pkt); |
|
int temp; |
|
u32 ths_crossed; |
|
|
|
/* the notification is handled synchronously in ctkill, so skip here */ |
|
if (test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) |
|
return; |
|
|
|
temp = iwl_mvm_temp_notif_parse(mvm, pkt); |
|
|
|
if (!iwl_mvm_is_tt_in_fw(mvm)) { |
|
if (temp >= 0) |
|
iwl_mvm_tt_temp_changed(mvm, temp); |
|
return; |
|
} |
|
|
|
if (WARN_ON_ONCE(len < sizeof(*notif_v2))) { |
|
IWL_ERR(mvm, "Invalid DTS_MEASUREMENT_NOTIFICATION\n"); |
|
return; |
|
} |
|
|
|
notif_v2 = (void *)pkt->data; |
|
ths_crossed = le32_to_cpu(notif_v2->threshold_idx); |
|
|
|
/* 0xFF in ths_crossed means the notification is not related |
|
* to a trip, so we can ignore it here. |
|
*/ |
|
if (ths_crossed == 0xFF) |
|
return; |
|
|
|
IWL_DEBUG_TEMP(mvm, "Temp = %d Threshold crossed = %d\n", |
|
temp, ths_crossed); |
|
|
|
#ifdef CONFIG_THERMAL |
|
if (WARN_ON(ths_crossed >= IWL_MAX_DTS_TRIPS)) |
|
return; |
|
|
|
if (mvm->tz_device.tzone) { |
|
struct iwl_mvm_thermal_device *tz_dev = &mvm->tz_device; |
|
|
|
thermal_zone_device_update(tz_dev->tzone, |
|
THERMAL_TRIP_VIOLATED); |
|
} |
|
#endif /* CONFIG_THERMAL */ |
|
} |
|
|
|
void iwl_mvm_ct_kill_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) |
|
{ |
|
struct iwl_rx_packet *pkt = rxb_addr(rxb); |
|
struct ct_kill_notif *notif; |
|
|
|
notif = (struct ct_kill_notif *)pkt->data; |
|
IWL_DEBUG_TEMP(mvm, "CT Kill notification temperature = %d\n", |
|
notif->temperature); |
|
|
|
iwl_mvm_enter_ctkill(mvm); |
|
} |
|
|
|
/* |
|
* send the DTS_MEASUREMENT_TRIGGER command with or without waiting for a |
|
* response. If we get a response then the measurement is stored in 'temp' |
|
*/ |
|
static int iwl_mvm_send_temp_cmd(struct iwl_mvm *mvm, bool response, s32 *temp) |
|
{ |
|
struct iwl_host_cmd cmd = {}; |
|
struct iwl_dts_measurement_cmd dts_cmd = { |
|
.flags = cpu_to_le32(DTS_TRIGGER_CMD_FLAGS_TEMP), |
|
}; |
|
struct iwl_ext_dts_measurement_cmd ext_cmd = { |
|
.control_mode = cpu_to_le32(DTS_DIRECT_WITHOUT_MEASURE), |
|
}; |
|
struct iwl_dts_measurement_resp *resp; |
|
void *cmd_ptr; |
|
int ret; |
|
u32 cmd_flags = 0; |
|
u16 len; |
|
|
|
/* Check which command format is used (regular/extended) */ |
|
if (fw_has_capa(&mvm->fw->ucode_capa, |
|
IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE)) { |
|
len = sizeof(ext_cmd); |
|
cmd_ptr = &ext_cmd; |
|
} else { |
|
len = sizeof(dts_cmd); |
|
cmd_ptr = &dts_cmd; |
|
} |
|
/* The command version where we get a response is zero length */ |
|
if (response) { |
|
cmd_flags = CMD_WANT_SKB; |
|
len = 0; |
|
} |
|
|
|
cmd.id = WIDE_ID(PHY_OPS_GROUP, CMD_DTS_MEASUREMENT_TRIGGER_WIDE); |
|
cmd.len[0] = len; |
|
cmd.flags = cmd_flags; |
|
cmd.data[0] = cmd_ptr; |
|
|
|
IWL_DEBUG_TEMP(mvm, |
|
"Sending temperature measurement command - %s response\n", |
|
response ? "with" : "without"); |
|
ret = iwl_mvm_send_cmd(mvm, &cmd); |
|
|
|
if (ret) { |
|
IWL_ERR(mvm, |
|
"Failed to send the temperature measurement command (err=%d)\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
if (response) { |
|
resp = (void *)cmd.resp_pkt->data; |
|
*temp = le32_to_cpu(resp->temp); |
|
IWL_DEBUG_TEMP(mvm, |
|
"Got temperature measurement response: temp=%d\n", |
|
*temp); |
|
iwl_free_resp(&cmd); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
int iwl_mvm_get_temp(struct iwl_mvm *mvm, s32 *temp) |
|
{ |
|
struct iwl_notification_wait wait_temp_notif; |
|
static u16 temp_notif[] = { WIDE_ID(PHY_OPS_GROUP, |
|
DTS_MEASUREMENT_NOTIF_WIDE) }; |
|
int ret; |
|
u8 cmd_ver; |
|
|
|
/* |
|
* If command version is 1 we send the command and immediately get |
|
* a response. For older versions we send the command and wait for a |
|
* notification (no command TLV for previous versions). |
|
*/ |
|
cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, PHY_OPS_GROUP, |
|
CMD_DTS_MEASUREMENT_TRIGGER_WIDE, |
|
IWL_FW_CMD_VER_UNKNOWN); |
|
if (cmd_ver == 1) |
|
return iwl_mvm_send_temp_cmd(mvm, true, temp); |
|
|
|
lockdep_assert_held(&mvm->mutex); |
|
|
|
iwl_init_notification_wait(&mvm->notif_wait, &wait_temp_notif, |
|
temp_notif, ARRAY_SIZE(temp_notif), |
|
iwl_mvm_temp_notif_wait, temp); |
|
|
|
ret = iwl_mvm_send_temp_cmd(mvm, false, temp); |
|
if (ret) { |
|
iwl_remove_notification(&mvm->notif_wait, &wait_temp_notif); |
|
return ret; |
|
} |
|
|
|
ret = iwl_wait_notification(&mvm->notif_wait, &wait_temp_notif, |
|
IWL_MVM_TEMP_NOTIF_WAIT_TIMEOUT); |
|
if (ret) |
|
IWL_WARN(mvm, "Getting the temperature timed out\n"); |
|
|
|
return ret; |
|
} |
|
|
|
static void check_exit_ctkill(struct work_struct *work) |
|
{ |
|
struct iwl_mvm_tt_mgmt *tt; |
|
struct iwl_mvm *mvm; |
|
u32 duration; |
|
s32 temp; |
|
int ret; |
|
|
|
tt = container_of(work, struct iwl_mvm_tt_mgmt, ct_kill_exit.work); |
|
mvm = container_of(tt, struct iwl_mvm, thermal_throttle); |
|
|
|
if (iwl_mvm_is_tt_in_fw(mvm)) { |
|
iwl_mvm_exit_ctkill(mvm); |
|
|
|
return; |
|
} |
|
|
|
duration = tt->params.ct_kill_duration; |
|
|
|
flush_work(&mvm->roc_done_wk); |
|
|
|
mutex_lock(&mvm->mutex); |
|
|
|
if (__iwl_mvm_mac_start(mvm)) |
|
goto reschedule; |
|
|
|
ret = iwl_mvm_get_temp(mvm, &temp); |
|
|
|
__iwl_mvm_mac_stop(mvm); |
|
|
|
if (ret) |
|
goto reschedule; |
|
|
|
IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", temp); |
|
|
|
if (temp <= tt->params.ct_kill_exit) { |
|
mutex_unlock(&mvm->mutex); |
|
iwl_mvm_exit_ctkill(mvm); |
|
return; |
|
} |
|
|
|
reschedule: |
|
mutex_unlock(&mvm->mutex); |
|
schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit, |
|
round_jiffies(duration * HZ)); |
|
} |
|
|
|
static void iwl_mvm_tt_smps_iterator(void *_data, u8 *mac, |
|
struct ieee80211_vif *vif) |
|
{ |
|
struct iwl_mvm *mvm = _data; |
|
enum ieee80211_smps_mode smps_mode; |
|
|
|
lockdep_assert_held(&mvm->mutex); |
|
|
|
if (mvm->thermal_throttle.dynamic_smps) |
|
smps_mode = IEEE80211_SMPS_DYNAMIC; |
|
else |
|
smps_mode = IEEE80211_SMPS_AUTOMATIC; |
|
|
|
if (vif->type != NL80211_IFTYPE_STATION) |
|
return; |
|
|
|
iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, smps_mode); |
|
} |
|
|
|
static void iwl_mvm_tt_tx_protection(struct iwl_mvm *mvm, bool enable) |
|
{ |
|
struct iwl_mvm_sta *mvmsta; |
|
int i, err; |
|
|
|
for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { |
|
mvmsta = iwl_mvm_sta_from_staid_protected(mvm, i); |
|
if (!mvmsta) |
|
continue; |
|
|
|
if (enable == mvmsta->tt_tx_protection) |
|
continue; |
|
err = iwl_mvm_tx_protection(mvm, mvmsta, enable); |
|
if (err) { |
|
IWL_ERR(mvm, "Failed to %s Tx protection\n", |
|
enable ? "enable" : "disable"); |
|
} else { |
|
IWL_DEBUG_TEMP(mvm, "%s Tx protection\n", |
|
enable ? "Enable" : "Disable"); |
|
mvmsta->tt_tx_protection = enable; |
|
} |
|
} |
|
} |
|
|
|
void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff) |
|
{ |
|
struct iwl_host_cmd cmd = { |
|
.id = REPLY_THERMAL_MNG_BACKOFF, |
|
.len = { sizeof(u32), }, |
|
.data = { &backoff, }, |
|
}; |
|
|
|
backoff = max(backoff, mvm->thermal_throttle.min_backoff); |
|
|
|
if (iwl_mvm_send_cmd(mvm, &cmd) == 0) { |
|
IWL_DEBUG_TEMP(mvm, "Set Thermal Tx backoff to: %u\n", |
|
backoff); |
|
mvm->thermal_throttle.tx_backoff = backoff; |
|
} else { |
|
IWL_ERR(mvm, "Failed to change Thermal Tx backoff\n"); |
|
} |
|
} |
|
|
|
void iwl_mvm_tt_handler(struct iwl_mvm *mvm) |
|
{ |
|
struct iwl_tt_params *params = &mvm->thermal_throttle.params; |
|
struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; |
|
s32 temperature = mvm->temperature; |
|
bool throttle_enable = false; |
|
int i; |
|
u32 tx_backoff; |
|
|
|
IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", mvm->temperature); |
|
|
|
if (params->support_ct_kill && temperature >= params->ct_kill_entry) { |
|
iwl_mvm_enter_ctkill(mvm); |
|
return; |
|
} |
|
|
|
if (params->support_ct_kill && |
|
temperature <= params->ct_kill_exit) { |
|
iwl_mvm_exit_ctkill(mvm); |
|
return; |
|
} |
|
|
|
if (params->support_dynamic_smps) { |
|
if (!tt->dynamic_smps && |
|
temperature >= params->dynamic_smps_entry) { |
|
IWL_DEBUG_TEMP(mvm, "Enable dynamic SMPS\n"); |
|
tt->dynamic_smps = true; |
|
ieee80211_iterate_active_interfaces_atomic( |
|
mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
|
iwl_mvm_tt_smps_iterator, mvm); |
|
throttle_enable = true; |
|
} else if (tt->dynamic_smps && |
|
temperature <= params->dynamic_smps_exit) { |
|
IWL_DEBUG_TEMP(mvm, "Disable dynamic SMPS\n"); |
|
tt->dynamic_smps = false; |
|
ieee80211_iterate_active_interfaces_atomic( |
|
mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
|
iwl_mvm_tt_smps_iterator, mvm); |
|
} |
|
} |
|
|
|
if (params->support_tx_protection) { |
|
if (temperature >= params->tx_protection_entry) { |
|
iwl_mvm_tt_tx_protection(mvm, true); |
|
throttle_enable = true; |
|
} else if (temperature <= params->tx_protection_exit) { |
|
iwl_mvm_tt_tx_protection(mvm, false); |
|
} |
|
} |
|
|
|
if (params->support_tx_backoff) { |
|
tx_backoff = tt->min_backoff; |
|
for (i = 0; i < TT_TX_BACKOFF_SIZE; i++) { |
|
if (temperature < params->tx_backoff[i].temperature) |
|
break; |
|
tx_backoff = max(tt->min_backoff, |
|
params->tx_backoff[i].backoff); |
|
} |
|
if (tx_backoff != tt->min_backoff) |
|
throttle_enable = true; |
|
if (tt->tx_backoff != tx_backoff) |
|
iwl_mvm_tt_tx_backoff(mvm, tx_backoff); |
|
} |
|
|
|
if (!tt->throttle && throttle_enable) { |
|
IWL_WARN(mvm, |
|
"Due to high temperature thermal throttling initiated\n"); |
|
tt->throttle = true; |
|
} else if (tt->throttle && !tt->dynamic_smps && |
|
tt->tx_backoff == tt->min_backoff && |
|
temperature <= params->tx_protection_exit) { |
|
IWL_WARN(mvm, |
|
"Temperature is back to normal thermal throttling stopped\n"); |
|
tt->throttle = false; |
|
} |
|
} |
|
|
|
static const struct iwl_tt_params iwl_mvm_default_tt_params = { |
|
.ct_kill_entry = 118, |
|
.ct_kill_exit = 96, |
|
.ct_kill_duration = 5, |
|
.dynamic_smps_entry = 114, |
|
.dynamic_smps_exit = 110, |
|
.tx_protection_entry = 114, |
|
.tx_protection_exit = 108, |
|
.tx_backoff = { |
|
{.temperature = 112, .backoff = 200}, |
|
{.temperature = 113, .backoff = 600}, |
|
{.temperature = 114, .backoff = 1200}, |
|
{.temperature = 115, .backoff = 2000}, |
|
{.temperature = 116, .backoff = 4000}, |
|
{.temperature = 117, .backoff = 10000}, |
|
}, |
|
.support_ct_kill = true, |
|
.support_dynamic_smps = true, |
|
.support_tx_protection = true, |
|
.support_tx_backoff = true, |
|
}; |
|
|
|
/* budget in mWatt */ |
|
static const u32 iwl_mvm_cdev_budgets[] = { |
|
2400, /* cooling state 0 */ |
|
2000, /* cooling state 1 */ |
|
1800, /* cooling state 2 */ |
|
1600, /* cooling state 3 */ |
|
1400, /* cooling state 4 */ |
|
1200, /* cooling state 5 */ |
|
1000, /* cooling state 6 */ |
|
900, /* cooling state 7 */ |
|
800, /* cooling state 8 */ |
|
700, /* cooling state 9 */ |
|
650, /* cooling state 10 */ |
|
600, /* cooling state 11 */ |
|
550, /* cooling state 12 */ |
|
500, /* cooling state 13 */ |
|
450, /* cooling state 14 */ |
|
400, /* cooling state 15 */ |
|
350, /* cooling state 16 */ |
|
300, /* cooling state 17 */ |
|
250, /* cooling state 18 */ |
|
200, /* cooling state 19 */ |
|
150, /* cooling state 20 */ |
|
}; |
|
|
|
int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 state) |
|
{ |
|
struct iwl_mvm_ctdp_cmd cmd = { |
|
.operation = cpu_to_le32(op), |
|
.budget = cpu_to_le32(iwl_mvm_cdev_budgets[state]), |
|
.window_size = 0, |
|
}; |
|
int ret; |
|
u32 status; |
|
|
|
lockdep_assert_held(&mvm->mutex); |
|
|
|
status = 0; |
|
ret = iwl_mvm_send_cmd_pdu_status(mvm, WIDE_ID(PHY_OPS_GROUP, |
|
CTDP_CONFIG_CMD), |
|
sizeof(cmd), &cmd, &status); |
|
|
|
if (ret) { |
|
IWL_ERR(mvm, "cTDP command failed (err=%d)\n", ret); |
|
return ret; |
|
} |
|
|
|
switch (op) { |
|
case CTDP_CMD_OPERATION_START: |
|
#ifdef CONFIG_THERMAL |
|
mvm->cooling_dev.cur_state = state; |
|
#endif /* CONFIG_THERMAL */ |
|
break; |
|
case CTDP_CMD_OPERATION_REPORT: |
|
IWL_DEBUG_TEMP(mvm, "cTDP avg energy in mWatt = %d\n", status); |
|
/* when the function is called with CTDP_CMD_OPERATION_REPORT |
|
* option the function should return the average budget value |
|
* that is received from the FW. |
|
* The budget can't be less or equal to 0, so it's possible |
|
* to distinguish between error values and budgets. |
|
*/ |
|
return status; |
|
case CTDP_CMD_OPERATION_STOP: |
|
IWL_DEBUG_TEMP(mvm, "cTDP stopped successfully\n"); |
|
break; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_THERMAL |
|
static int compare_temps(const void *a, const void *b) |
|
{ |
|
return ((s16)le16_to_cpu(*(__le16 *)a) - |
|
(s16)le16_to_cpu(*(__le16 *)b)); |
|
} |
|
#endif |
|
|
|
int iwl_mvm_send_temp_report_ths_cmd(struct iwl_mvm *mvm) |
|
{ |
|
struct temp_report_ths_cmd cmd = {0}; |
|
int ret; |
|
#ifdef CONFIG_THERMAL |
|
int i, j, idx = 0; |
|
|
|
lockdep_assert_held(&mvm->mutex); |
|
|
|
if (!mvm->tz_device.tzone) |
|
goto send; |
|
|
|
/* The driver holds array of temperature trips that are unsorted |
|
* and uncompressed, the FW should get it compressed and sorted |
|
*/ |
|
|
|
/* compress temp_trips to cmd array, remove uninitialized values*/ |
|
for (i = 0; i < IWL_MAX_DTS_TRIPS; i++) { |
|
if (mvm->tz_device.temp_trips[i] != S16_MIN) { |
|
cmd.thresholds[idx++] = |
|
cpu_to_le16(mvm->tz_device.temp_trips[i]); |
|
} |
|
} |
|
cmd.num_temps = cpu_to_le32(idx); |
|
|
|
if (!idx) |
|
goto send; |
|
|
|
/*sort cmd array*/ |
|
sort(cmd.thresholds, idx, sizeof(s16), compare_temps, NULL); |
|
|
|
/* we should save the indexes of trips because we sort |
|
* and compress the orginal array |
|
*/ |
|
for (i = 0; i < idx; i++) { |
|
for (j = 0; j < IWL_MAX_DTS_TRIPS; j++) { |
|
if (le16_to_cpu(cmd.thresholds[i]) == |
|
mvm->tz_device.temp_trips[j]) |
|
mvm->tz_device.fw_trips_index[i] = j; |
|
} |
|
} |
|
|
|
send: |
|
#endif |
|
ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(PHY_OPS_GROUP, |
|
TEMP_REPORTING_THRESHOLDS_CMD), |
|
0, sizeof(cmd), &cmd); |
|
if (ret) |
|
IWL_ERR(mvm, "TEMP_REPORT_THS_CMD command failed (err=%d)\n", |
|
ret); |
|
|
|
return ret; |
|
} |
|
|
|
#ifdef CONFIG_THERMAL |
|
static int iwl_mvm_tzone_get_temp(struct thermal_zone_device *device, |
|
int *temperature) |
|
{ |
|
struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata; |
|
int ret; |
|
int temp; |
|
|
|
mutex_lock(&mvm->mutex); |
|
|
|
if (!iwl_mvm_firmware_running(mvm) || |
|
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) { |
|
ret = -ENODATA; |
|
goto out; |
|
} |
|
|
|
ret = iwl_mvm_get_temp(mvm, &temp); |
|
if (ret) |
|
goto out; |
|
|
|
*temperature = temp * 1000; |
|
|
|
out: |
|
mutex_unlock(&mvm->mutex); |
|
return ret; |
|
} |
|
|
|
static int iwl_mvm_tzone_get_trip_temp(struct thermal_zone_device *device, |
|
int trip, int *temp) |
|
{ |
|
struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata; |
|
|
|
if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS) |
|
return -EINVAL; |
|
|
|
*temp = mvm->tz_device.temp_trips[trip] * 1000; |
|
|
|
return 0; |
|
} |
|
|
|
static int iwl_mvm_tzone_get_trip_type(struct thermal_zone_device *device, |
|
int trip, enum thermal_trip_type *type) |
|
{ |
|
if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS) |
|
return -EINVAL; |
|
|
|
*type = THERMAL_TRIP_PASSIVE; |
|
|
|
return 0; |
|
} |
|
|
|
static int iwl_mvm_tzone_set_trip_temp(struct thermal_zone_device *device, |
|
int trip, int temp) |
|
{ |
|
struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata; |
|
struct iwl_mvm_thermal_device *tzone; |
|
int i, ret; |
|
s16 temperature; |
|
|
|
mutex_lock(&mvm->mutex); |
|
|
|
if (!iwl_mvm_firmware_running(mvm) || |
|
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) { |
|
ret = -EIO; |
|
goto out; |
|
} |
|
|
|
if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
if ((temp / 1000) > S16_MAX) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
temperature = (s16)(temp / 1000); |
|
tzone = &mvm->tz_device; |
|
|
|
if (!tzone) { |
|
ret = -EIO; |
|
goto out; |
|
} |
|
|
|
/* no updates*/ |
|
if (tzone->temp_trips[trip] == temperature) { |
|
ret = 0; |
|
goto out; |
|
} |
|
|
|
/* already existing temperature */ |
|
for (i = 0; i < IWL_MAX_DTS_TRIPS; i++) { |
|
if (tzone->temp_trips[i] == temperature) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
} |
|
|
|
tzone->temp_trips[trip] = temperature; |
|
|
|
ret = iwl_mvm_send_temp_report_ths_cmd(mvm); |
|
out: |
|
mutex_unlock(&mvm->mutex); |
|
return ret; |
|
} |
|
|
|
static struct thermal_zone_device_ops tzone_ops = { |
|
.get_temp = iwl_mvm_tzone_get_temp, |
|
.get_trip_temp = iwl_mvm_tzone_get_trip_temp, |
|
.get_trip_type = iwl_mvm_tzone_get_trip_type, |
|
.set_trip_temp = iwl_mvm_tzone_set_trip_temp, |
|
}; |
|
|
|
/* make all trips writable */ |
|
#define IWL_WRITABLE_TRIPS_MSK (BIT(IWL_MAX_DTS_TRIPS) - 1) |
|
|
|
static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm) |
|
{ |
|
int i, ret; |
|
char name[16]; |
|
static atomic_t counter = ATOMIC_INIT(0); |
|
|
|
if (!iwl_mvm_is_tt_in_fw(mvm)) { |
|
mvm->tz_device.tzone = NULL; |
|
|
|
return; |
|
} |
|
|
|
BUILD_BUG_ON(ARRAY_SIZE(name) >= THERMAL_NAME_LENGTH); |
|
|
|
sprintf(name, "iwlwifi_%u", atomic_inc_return(&counter) & 0xFF); |
|
mvm->tz_device.tzone = thermal_zone_device_register(name, |
|
IWL_MAX_DTS_TRIPS, |
|
IWL_WRITABLE_TRIPS_MSK, |
|
mvm, &tzone_ops, |
|
NULL, 0, 0); |
|
if (IS_ERR(mvm->tz_device.tzone)) { |
|
IWL_DEBUG_TEMP(mvm, |
|
"Failed to register to thermal zone (err = %ld)\n", |
|
PTR_ERR(mvm->tz_device.tzone)); |
|
mvm->tz_device.tzone = NULL; |
|
return; |
|
} |
|
|
|
ret = thermal_zone_device_enable(mvm->tz_device.tzone); |
|
if (ret) { |
|
IWL_DEBUG_TEMP(mvm, "Failed to enable thermal zone\n"); |
|
thermal_zone_device_unregister(mvm->tz_device.tzone); |
|
return; |
|
} |
|
|
|
/* 0 is a valid temperature, |
|
* so initialize the array with S16_MIN which invalid temperature |
|
*/ |
|
for (i = 0 ; i < IWL_MAX_DTS_TRIPS; i++) |
|
mvm->tz_device.temp_trips[i] = S16_MIN; |
|
} |
|
|
|
static int iwl_mvm_tcool_get_max_state(struct thermal_cooling_device *cdev, |
|
unsigned long *state) |
|
{ |
|
*state = ARRAY_SIZE(iwl_mvm_cdev_budgets) - 1; |
|
|
|
return 0; |
|
} |
|
|
|
static int iwl_mvm_tcool_get_cur_state(struct thermal_cooling_device *cdev, |
|
unsigned long *state) |
|
{ |
|
struct iwl_mvm *mvm = (struct iwl_mvm *)(cdev->devdata); |
|
|
|
*state = mvm->cooling_dev.cur_state; |
|
|
|
return 0; |
|
} |
|
|
|
static int iwl_mvm_tcool_set_cur_state(struct thermal_cooling_device *cdev, |
|
unsigned long new_state) |
|
{ |
|
struct iwl_mvm *mvm = (struct iwl_mvm *)(cdev->devdata); |
|
int ret; |
|
|
|
mutex_lock(&mvm->mutex); |
|
|
|
if (!iwl_mvm_firmware_running(mvm) || |
|
mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) { |
|
ret = -EIO; |
|
goto unlock; |
|
} |
|
|
|
if (new_state >= ARRAY_SIZE(iwl_mvm_cdev_budgets)) { |
|
ret = -EINVAL; |
|
goto unlock; |
|
} |
|
|
|
ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START, |
|
new_state); |
|
|
|
unlock: |
|
mutex_unlock(&mvm->mutex); |
|
return ret; |
|
} |
|
|
|
static const struct thermal_cooling_device_ops tcooling_ops = { |
|
.get_max_state = iwl_mvm_tcool_get_max_state, |
|
.get_cur_state = iwl_mvm_tcool_get_cur_state, |
|
.set_cur_state = iwl_mvm_tcool_set_cur_state, |
|
}; |
|
|
|
static void iwl_mvm_cooling_device_register(struct iwl_mvm *mvm) |
|
{ |
|
char name[] = "iwlwifi"; |
|
|
|
if (!iwl_mvm_is_ctdp_supported(mvm)) |
|
return; |
|
|
|
BUILD_BUG_ON(ARRAY_SIZE(name) >= THERMAL_NAME_LENGTH); |
|
|
|
mvm->cooling_dev.cdev = |
|
thermal_cooling_device_register(name, |
|
mvm, |
|
&tcooling_ops); |
|
|
|
if (IS_ERR(mvm->cooling_dev.cdev)) { |
|
IWL_DEBUG_TEMP(mvm, |
|
"Failed to register to cooling device (err = %ld)\n", |
|
PTR_ERR(mvm->cooling_dev.cdev)); |
|
mvm->cooling_dev.cdev = NULL; |
|
return; |
|
} |
|
} |
|
|
|
static void iwl_mvm_thermal_zone_unregister(struct iwl_mvm *mvm) |
|
{ |
|
if (!iwl_mvm_is_tt_in_fw(mvm) || !mvm->tz_device.tzone) |
|
return; |
|
|
|
IWL_DEBUG_TEMP(mvm, "Thermal zone device unregister\n"); |
|
if (mvm->tz_device.tzone) { |
|
thermal_zone_device_unregister(mvm->tz_device.tzone); |
|
mvm->tz_device.tzone = NULL; |
|
} |
|
} |
|
|
|
static void iwl_mvm_cooling_device_unregister(struct iwl_mvm *mvm) |
|
{ |
|
if (!iwl_mvm_is_ctdp_supported(mvm) || !mvm->cooling_dev.cdev) |
|
return; |
|
|
|
IWL_DEBUG_TEMP(mvm, "Cooling device unregister\n"); |
|
if (mvm->cooling_dev.cdev) { |
|
thermal_cooling_device_unregister(mvm->cooling_dev.cdev); |
|
mvm->cooling_dev.cdev = NULL; |
|
} |
|
} |
|
#endif /* CONFIG_THERMAL */ |
|
|
|
void iwl_mvm_thermal_initialize(struct iwl_mvm *mvm, u32 min_backoff) |
|
{ |
|
struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; |
|
|
|
IWL_DEBUG_TEMP(mvm, "Initialize Thermal Throttling\n"); |
|
|
|
if (mvm->cfg->thermal_params) |
|
tt->params = *mvm->cfg->thermal_params; |
|
else |
|
tt->params = iwl_mvm_default_tt_params; |
|
|
|
tt->throttle = false; |
|
tt->dynamic_smps = false; |
|
tt->min_backoff = min_backoff; |
|
INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill); |
|
|
|
#ifdef CONFIG_THERMAL |
|
iwl_mvm_cooling_device_register(mvm); |
|
iwl_mvm_thermal_zone_register(mvm); |
|
#endif |
|
mvm->init_status |= IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE; |
|
} |
|
|
|
void iwl_mvm_thermal_exit(struct iwl_mvm *mvm) |
|
{ |
|
if (!(mvm->init_status & IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE)) |
|
return; |
|
|
|
cancel_delayed_work_sync(&mvm->thermal_throttle.ct_kill_exit); |
|
IWL_DEBUG_TEMP(mvm, "Exit Thermal Throttling\n"); |
|
|
|
#ifdef CONFIG_THERMAL |
|
iwl_mvm_cooling_device_unregister(mvm); |
|
iwl_mvm_thermal_zone_unregister(mvm); |
|
#endif |
|
mvm->init_status &= ~IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE; |
|
}
|
|
|