summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/iwlwifi/mvm/tt.c
blob: 1f3282dff5136fa305c894c9c35ee5914dd63ddd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2013 Intel Corporation. All rights reserved.
 *
 * 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 COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/

#include "mvm.h"
#include "iwl-config.h"
#include "iwl-io.h"
#include "iwl-csr.h"
#include "iwl-prph.h"

#define OTP_DTS_DIODE_DEVIATION 96 /*in words*/
/* VBG - Voltage Band Gap error data (temperature offset) */
#define OTP_WP_DTS_VBG			(OTP_DTS_DIODE_DEVIATION + 2)
#define MEAS_VBG_MIN_VAL		2300
#define MEAS_VBG_MAX_VAL		3000
#define MEAS_VBG_DEFAULT_VAL		2700
#define DTS_DIODE_VALID(flags)		(flags & DTS_DIODE_REG_FLAGS_PASS_ONCE)
#define MIN_TEMPERATURE			0
#define MAX_TEMPERATURE			125
#define TEMPERATURE_ERROR		(MAX_TEMPERATURE + 1)
#define PTAT_DIGITAL_VALUE_MIN_VALUE	0
#define PTAT_DIGITAL_VALUE_MAX_VALUE	0xFF
#define DTS_VREFS_NUM			5
static inline u32 DTS_DIODE_GET_VREFS_ID(u32 flags)
{
	return (flags & DTS_DIODE_REG_FLAGS_VREFS_ID) >>
					DTS_DIODE_REG_FLAGS_VREFS_ID_POS;
}

#define CALC_VREFS_MIN_DIFF	43
#define CALC_VREFS_MAX_DIFF	51
#define CALC_LUT_SIZE		(1 + CALC_VREFS_MAX_DIFF - CALC_VREFS_MIN_DIFF)
#define CALC_LUT_INDEX_OFFSET	CALC_VREFS_MIN_DIFF
#define CALC_TEMPERATURE_RESULT_SHIFT_OFFSET	23

/*
 * @digital_value: The diode's digital-value sampled (temperature/voltage)
 * @vref_low: The lower voltage-reference (the vref just below the diode's
 *	sampled digital-value)
 * @vref_high: The higher voltage-reference (the vref just above the diode's
 *	sampled digital-value)
 * @flags: bits[1:0]: The ID of the Vrefs pair (lowVref,highVref)
 *	bits[6:2]: Reserved.
 *	bits[7:7]: Indicates completion of at least 1 successful sample
 *	since last DTS reset.
 */
struct iwl_mvm_dts_diode_bits {
	u8 digital_value;
	u8 vref_low;
	u8 vref_high;
	u8 flags;
} __packed;

union dts_diode_results {
	u32 reg_value;
	struct iwl_mvm_dts_diode_bits bits;
} __packed;

static s16 iwl_mvm_dts_get_volt_band_gap(struct iwl_mvm *mvm)
{
	struct iwl_nvm_section calib_sec;
	const __le16 *calib;
	u16 vbg;

	/* TODO: move parsing to NVM code */
	calib_sec = mvm->nvm_sections[NVM_SECTION_TYPE_CALIBRATION];
	calib = (__le16 *)calib_sec.data;

	vbg = le16_to_cpu(calib[OTP_WP_DTS_VBG]);

	if (vbg < MEAS_VBG_MIN_VAL || vbg > MEAS_VBG_MAX_VAL)
		vbg = MEAS_VBG_DEFAULT_VAL;

	return vbg;
}

static u16 iwl_mvm_dts_get_ptat_deviation_offset(struct iwl_mvm *mvm)
{
	const u8 *calib;
	u8 ptat, pa1, pa2, median;

	/* TODO: move parsing to NVM code */
	calib = mvm->nvm_sections[NVM_SECTION_TYPE_CALIBRATION].data;
	ptat = calib[OTP_DTS_DIODE_DEVIATION];
	pa1 = calib[OTP_DTS_DIODE_DEVIATION + 1];
	pa2 = calib[OTP_DTS_DIODE_DEVIATION + 2];

	/* get the median: */
	if (ptat > pa1) {
		if (ptat > pa2)
			median = (pa1 > pa2) ? pa1 : pa2;
		else
			median = ptat;
	} else {
		if (pa1 > pa2)
			median = (ptat > pa2) ? ptat : pa2;
		else
			median = pa1;
	}

	return ptat - median;
}

static u8 iwl_mvm_dts_calibrate_ptat_deviation(struct iwl_mvm *mvm, u8 value)
{
	/* Calibrate the PTAT digital value, based on PTAT deviation data: */
	s16 new_val = value - iwl_mvm_dts_get_ptat_deviation_offset(mvm);

	if (new_val > PTAT_DIGITAL_VALUE_MAX_VALUE)
		new_val = PTAT_DIGITAL_VALUE_MAX_VALUE;
	else if (new_val < PTAT_DIGITAL_VALUE_MIN_VALUE)
		new_val = PTAT_DIGITAL_VALUE_MIN_VALUE;

	return new_val;
}

static bool dts_get_adjacent_vrefs(struct iwl_mvm *mvm,
				   union dts_diode_results *avg_ptat)
{
	u8 vrefs_results[DTS_VREFS_NUM];
	u8 low_vref_index = 0, flags;
	u32 reg;

	reg = iwl_read_prph(mvm->trans, DTSC_VREF_AVG);
	memcpy(vrefs_results, &reg, sizeof(reg));
	reg = iwl_read_prph(mvm->trans, DTSC_VREF5_AVG);
	vrefs_results[4] = reg & 0xff;

	if (avg_ptat->bits.digital_value < vrefs_results[0] ||
	    avg_ptat->bits.digital_value > vrefs_results[4])
		return false;

	if (avg_ptat->bits.digital_value > vrefs_results[3])
		low_vref_index = 3;
	else if (avg_ptat->bits.digital_value > vrefs_results[2])
		low_vref_index = 2;
	else if (avg_ptat->bits.digital_value > vrefs_results[1])
		low_vref_index = 1;

	avg_ptat->bits.vref_low  = vrefs_results[low_vref_index];
	avg_ptat->bits.vref_high = vrefs_results[low_vref_index + 1];
	flags = avg_ptat->bits.flags;
	avg_ptat->bits.flags =
		(flags & ~DTS_DIODE_REG_FLAGS_VREFS_ID) |
		(low_vref_index & DTS_DIODE_REG_FLAGS_VREFS_ID);
	return true;
}

/*
 * return true it the results are valid, and false otherwise.
 */
static bool dts_read_ptat_avg_results(struct iwl_mvm *mvm,
				      union dts_diode_results *avg_ptat)
{
	u32 reg;
	u8 tmp;

	/* fill the diode value and pass_once with avg-reg results */
	reg = iwl_read_prph(mvm->trans, DTSC_PTAT_AVG);
	reg &= DTS_DIODE_REG_DIG_VAL | DTS_DIODE_REG_PASS_ONCE;
	avg_ptat->reg_value = reg;

	/* calibrate the PTAT digital value */
	tmp = avg_ptat->bits.digital_value;
	tmp = iwl_mvm_dts_calibrate_ptat_deviation(mvm, tmp);
	avg_ptat->bits.digital_value = tmp;

	/*
	 * fill vrefs fields, based on the avgVrefs results
	 * and the diode value
	 */
	return dts_get_adjacent_vrefs(mvm, avg_ptat) &&
		DTS_DIODE_VALID(avg_ptat->bits.flags);
}

static s32 calculate_nic_temperature(union dts_diode_results avg_ptat,
				     u16 volt_band_gap)
{
	u32 tmp_result;
	u8 vrefs_diff;
	/*
	 * For temperature calculation (at the end, shift right by 23)
	 * LUT[(D2-D1)] = ROUND{ 2^23 / ((D2-D1)*9*10) }
	 * (D2-D1) ==   43    44    45    46    47    48    49    50    51
	 */
	static const u16 calc_lut[CALC_LUT_SIZE] = {
		2168, 2118, 2071, 2026, 1983, 1942, 1902, 1864, 1828,
	};

	/*
	 * The diff between the high and low voltage-references is assumed
	 * to be strictly be in range of [60,68]
	 */
	vrefs_diff = avg_ptat.bits.vref_high - avg_ptat.bits.vref_low;

	if (vrefs_diff < CALC_VREFS_MIN_DIFF ||
	    vrefs_diff > CALC_VREFS_MAX_DIFF)
		return TEMPERATURE_ERROR;

	/* calculate the result: */
	tmp_result =
		vrefs_diff * (DTS_DIODE_GET_VREFS_ID(avg_ptat.bits.flags) + 9);
	tmp_result += avg_ptat.bits.digital_value;
	tmp_result -= avg_ptat.bits.vref_high;

	/* multiply by the LUT value (based on the diff) */
	tmp_result *= calc_lut[vrefs_diff - CALC_LUT_INDEX_OFFSET];

	/*
	 * Get the BandGap (the voltage refereces source) error data
	 * (temperature offset)
	 */
	tmp_result *= volt_band_gap;

	/*
	 * here, tmp_result value can be up to 32-bits. We want to right-shift
	 * it *without* sign-extend.
	 */
	tmp_result = tmp_result >> CALC_TEMPERATURE_RESULT_SHIFT_OFFSET;

	/*
	 * at this point, tmp_result should be in the range:
	 * 200 <= tmp_result <= 365
	 */
	return (s16)tmp_result - 240;
}

static s32 check_nic_temperature(struct iwl_mvm *mvm)
{
	u16 volt_band_gap;
	union dts_diode_results avg_ptat;

	volt_band_gap = iwl_mvm_dts_get_volt_band_gap(mvm);

	/* disable DTS */
	iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 0);

	/* SV initialization */
	iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 1);
	iwl_write_prph(mvm->trans, DTSC_CFG_MODE,
		       DTSC_CFG_MODE_PERIODIC);

	/* wait for results */
	msleep(100);
	if (!dts_read_ptat_avg_results(mvm, &avg_ptat))
		return TEMPERATURE_ERROR;

	/* disable DTS */
	iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 0);

	return calculate_nic_temperature(avg_ptat, volt_band_gap);
}

static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm)
{
	u32 duration = mvm->thermal_throttle.params->ct_kill_duration;

	IWL_ERR(mvm, "Enter CT Kill\n");
	iwl_mvm_set_hw_ctkill_state(mvm, true);
	schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit,
			      round_jiffies_relative(duration * HZ));
}

static void iwl_mvm_exit_ctkill(struct iwl_mvm *mvm)
{
	IWL_ERR(mvm, "Exit CT Kill\n");
	iwl_mvm_set_hw_ctkill_state(mvm, false);
}

static void check_exit_ctkill(struct work_struct *work)
{
	struct iwl_mvm_tt_mgmt *tt;
	struct iwl_mvm *mvm;
	u32 duration;
	s32 temp;

	tt = container_of(work, struct iwl_mvm_tt_mgmt, ct_kill_exit.work);
	mvm = container_of(tt, struct iwl_mvm, thermal_throttle);

	duration = tt->params->ct_kill_duration;

	iwl_trans_start_hw(mvm->trans);
	temp = check_nic_temperature(mvm);
	iwl_trans_stop_hw(mvm->trans, false);

	if (temp < MIN_TEMPERATURE || temp > MAX_TEMPERATURE) {
		IWL_DEBUG_TEMP(mvm, "Failed to measure NIC temperature\n");
		goto reschedule;
	}
	IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", temp);

	if (temp <= tt->params->ct_kill_exit) {
		iwl_mvm_exit_ctkill(mvm);
		return;
	}

reschedule:
	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 ieee80211_sta *sta;
	struct iwl_mvm_sta *mvmsta;
	int i, err;

	for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
						lockdep_is_held(&mvm->mutex));
		if (IS_ERR_OR_NULL(sta))
			continue;
		mvmsta = (void *)sta->drv_priv;
		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;
		}
	}
}

static 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, },
		.flags = CMD_SYNC,
	};

	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)
{
	const 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_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 = 0;
		for (i = 0; i < TT_TX_BACKOFF_SIZE; i++) {
			if (temperature < params->tx_backoff[i].temperature)
				break;
			tx_backoff = params->tx_backoff[i].backoff;
		}
		if (tx_backoff != 0)
			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 == 0 &&
		   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 iwl7000_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,
};

static const struct iwl_tt_params iwl7000_high_temp_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 = 300},
		{.temperature = 113, .backoff = 800},
		{.temperature = 114, .backoff = 1500},
		{.temperature = 115, .backoff = 3000},
		{.temperature = 116, .backoff = 5000},
		{.temperature = 117, .backoff = 10000},
	},
	.support_ct_kill = true,
	.support_dynamic_smps = true,
	.support_tx_protection = true,
	.support_tx_backoff = true,
};

void iwl_mvm_tt_initialize(struct iwl_mvm *mvm)
{
	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;

	IWL_DEBUG_TEMP(mvm, "Initialize Thermal Throttling\n");

	if (mvm->cfg->high_temp)
		tt->params = &iwl7000_high_temp_tt_params;
	else
		tt->params = &iwl7000_tt_params;

	tt->throttle = false;
	INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill);
}

void iwl_mvm_tt_exit(struct iwl_mvm *mvm)
{
	cancel_delayed_work_sync(&mvm->thermal_throttle.ct_kill_exit);
	IWL_DEBUG_TEMP(mvm, "Exit Thermal Throttling\n");
}