1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Intel Speed Select -- Enumerate and control features
4  * Copyright (c) 2019 Intel Corporation.
5  */
6 
7 #include "isst.h"
8 
9 int isst_get_ctdp_levels(int cpu, struct isst_pkg_ctdp *pkg_dev)
10 {
11 	unsigned int resp;
12 	int ret;
13 
14 	ret = isst_send_mbox_command(cpu, CONFIG_TDP,
15 				     CONFIG_TDP_GET_LEVELS_INFO, 0, 0, &resp);
16 	if (ret)
17 		return ret;
18 
19 	debug_printf("cpu:%d CONFIG_TDP_GET_LEVELS_INFO resp:%x\n", cpu, resp);
20 
21 	pkg_dev->version = resp & 0xff;
22 	pkg_dev->levels = (resp >> 8) & 0xff;
23 	pkg_dev->current_level = (resp >> 16) & 0xff;
24 	pkg_dev->locked = !!(resp & BIT(24));
25 	pkg_dev->enabled = !!(resp & BIT(31));
26 
27 	return 0;
28 }
29 
30 int isst_get_ctdp_control(int cpu, int config_index,
31 			  struct isst_pkg_ctdp_level_info *ctdp_level)
32 {
33 	unsigned int resp;
34 	int ret;
35 
36 	ret = isst_send_mbox_command(cpu, CONFIG_TDP,
37 				     CONFIG_TDP_GET_TDP_CONTROL, 0,
38 				     config_index, &resp);
39 	if (ret)
40 		return ret;
41 
42 	ctdp_level->fact_support = resp & BIT(0);
43 	ctdp_level->pbf_support = !!(resp & BIT(1));
44 	ctdp_level->fact_enabled = !!(resp & BIT(16));
45 	ctdp_level->pbf_enabled = !!(resp & BIT(17));
46 
47 	debug_printf(
48 		"cpu:%d CONFIG_TDP_GET_TDP_CONTROL resp:%x fact_support:%d pbf_support: %d fact_enabled:%d pbf_enabled:%d\n",
49 		cpu, resp, ctdp_level->fact_support, ctdp_level->pbf_support,
50 		ctdp_level->fact_enabled, ctdp_level->pbf_enabled);
51 
52 	return 0;
53 }
54 
55 int isst_get_tdp_info(int cpu, int config_index,
56 		      struct isst_pkg_ctdp_level_info *ctdp_level)
57 {
58 	unsigned int resp;
59 	int ret;
60 
61 	ret = isst_send_mbox_command(cpu, CONFIG_TDP, CONFIG_TDP_GET_TDP_INFO,
62 				     0, config_index, &resp);
63 	if (ret)
64 		return ret;
65 
66 	ctdp_level->pkg_tdp = resp & GENMASK(14, 0);
67 	ctdp_level->tdp_ratio = (resp & GENMASK(23, 16)) >> 16;
68 
69 	debug_printf(
70 		"cpu:%d ctdp:%d CONFIG_TDP_GET_TDP_INFO resp:%x tdp_ratio:%d pkg_tdp:%d\n",
71 		cpu, config_index, resp, ctdp_level->tdp_ratio,
72 		ctdp_level->pkg_tdp);
73 	return 0;
74 }
75 
76 int isst_get_pwr_info(int cpu, int config_index,
77 		      struct isst_pkg_ctdp_level_info *ctdp_level)
78 {
79 	unsigned int resp;
80 	int ret;
81 
82 	ret = isst_send_mbox_command(cpu, CONFIG_TDP, CONFIG_TDP_GET_PWR_INFO,
83 				     0, config_index, &resp);
84 	if (ret)
85 		return ret;
86 
87 	ctdp_level->pkg_max_power = resp & GENMASK(14, 0);
88 	ctdp_level->pkg_min_power = (resp & GENMASK(30, 16)) >> 16;
89 
90 	debug_printf(
91 		"cpu:%d ctdp:%d CONFIG_TDP_GET_PWR_INFO resp:%x pkg_max_power:%d pkg_min_power:%d\n",
92 		cpu, config_index, resp, ctdp_level->pkg_max_power,
93 		ctdp_level->pkg_min_power);
94 
95 	return 0;
96 }
97 
98 int isst_get_tjmax_info(int cpu, int config_index,
99 			struct isst_pkg_ctdp_level_info *ctdp_level)
100 {
101 	unsigned int resp;
102 	int ret;
103 
104 	ret = isst_send_mbox_command(cpu, CONFIG_TDP, CONFIG_TDP_GET_TJMAX_INFO,
105 				     0, config_index, &resp);
106 	if (ret)
107 		return ret;
108 
109 	ctdp_level->t_proc_hot = resp & GENMASK(7, 0);
110 
111 	debug_printf(
112 		"cpu:%d ctdp:%d CONFIG_TDP_GET_TJMAX_INFO resp:%x t_proc_hot:%d\n",
113 		cpu, config_index, resp, ctdp_level->t_proc_hot);
114 
115 	return 0;
116 }
117 
118 int isst_get_coremask_info(int cpu, int config_index,
119 			   struct isst_pkg_ctdp_level_info *ctdp_level)
120 {
121 	unsigned int resp;
122 	int i, ret;
123 
124 	ctdp_level->cpu_count = 0;
125 	for (i = 0; i < 2; ++i) {
126 		unsigned long long mask;
127 		int cpu_count = 0;
128 
129 		ret = isst_send_mbox_command(cpu, CONFIG_TDP,
130 					     CONFIG_TDP_GET_CORE_MASK, 0,
131 					     (i << 8) | config_index, &resp);
132 		if (ret)
133 			return ret;
134 
135 		debug_printf(
136 			"cpu:%d ctdp:%d mask:%d CONFIG_TDP_GET_CORE_MASK resp:%x\n",
137 			cpu, config_index, i, resp);
138 
139 		mask = (unsigned long long)resp << (32 * i);
140 		set_cpu_mask_from_punit_coremask(cpu, mask,
141 						 ctdp_level->core_cpumask_size,
142 						 ctdp_level->core_cpumask,
143 						 &cpu_count);
144 		ctdp_level->cpu_count += cpu_count;
145 		debug_printf("cpu:%d ctdp:%d mask:%d cpu count:%d\n", cpu,
146 			     config_index, i, ctdp_level->cpu_count);
147 	}
148 
149 	return 0;
150 }
151 
152 int isst_get_get_trl(int cpu, int level, int avx_level, int *trl)
153 {
154 	unsigned int req, resp;
155 	int ret;
156 
157 	req = level | (avx_level << 16);
158 	ret = isst_send_mbox_command(cpu, CONFIG_TDP,
159 				     CONFIG_TDP_GET_TURBO_LIMIT_RATIOS, 0, req,
160 				     &resp);
161 	if (ret)
162 		return ret;
163 
164 	debug_printf(
165 		"cpu:%d CONFIG_TDP_GET_TURBO_LIMIT_RATIOS req:%x resp:%x\n",
166 		cpu, req, resp);
167 
168 	trl[0] = resp & GENMASK(7, 0);
169 	trl[1] = (resp & GENMASK(15, 8)) >> 8;
170 	trl[2] = (resp & GENMASK(23, 16)) >> 16;
171 	trl[3] = (resp & GENMASK(31, 24)) >> 24;
172 
173 	req = level | BIT(8) | (avx_level << 16);
174 	ret = isst_send_mbox_command(cpu, CONFIG_TDP,
175 				     CONFIG_TDP_GET_TURBO_LIMIT_RATIOS, 0, req,
176 				     &resp);
177 	if (ret)
178 		return ret;
179 
180 	debug_printf("cpu:%d CONFIG_TDP_GET_TURBO_LIMIT req:%x resp:%x\n", cpu,
181 		     req, resp);
182 
183 	trl[4] = resp & GENMASK(7, 0);
184 	trl[5] = (resp & GENMASK(15, 8)) >> 8;
185 	trl[6] = (resp & GENMASK(23, 16)) >> 16;
186 	trl[7] = (resp & GENMASK(31, 24)) >> 24;
187 
188 	return 0;
189 }
190 
191 int isst_get_trl_bucket_info(int cpu, unsigned long long *buckets_info)
192 {
193 	int ret;
194 
195 	debug_printf("cpu:%d bucket info via MSR\n", cpu);
196 
197 	*buckets_info = 0;
198 
199 	ret = isst_send_msr_command(cpu, 0x1ae, 0, buckets_info);
200 	if (ret)
201 		return ret;
202 
203 	debug_printf("cpu:%d bucket info via MSR successful 0x%llx\n", cpu,
204 		     *buckets_info);
205 
206 	return 0;
207 }
208 
209 int isst_set_tdp_level_msr(int cpu, int tdp_level)
210 {
211 	unsigned long long level = tdp_level;
212 	int ret;
213 
214 	debug_printf("cpu: tdp_level via MSR %d\n", cpu, tdp_level);
215 
216 	if (isst_get_config_tdp_lock_status(cpu)) {
217 		debug_printf("cpu: tdp_locked %d\n", cpu);
218 		return -1;
219 	}
220 
221 	if (tdp_level > 2)
222 		return -1; /* invalid value */
223 
224 	ret = isst_send_msr_command(cpu, 0x64b, 1, &level);
225 	if (ret)
226 		return ret;
227 
228 	debug_printf("cpu: tdp_level via MSR successful %d\n", cpu, tdp_level);
229 
230 	return 0;
231 }
232 
233 int isst_set_tdp_level(int cpu, int tdp_level)
234 {
235 	unsigned int resp;
236 	int ret;
237 
238 	ret = isst_send_mbox_command(cpu, CONFIG_TDP, CONFIG_TDP_SET_LEVEL, 0,
239 				     tdp_level, &resp);
240 	if (ret)
241 		return isst_set_tdp_level_msr(cpu, tdp_level);
242 
243 	return 0;
244 }
245 
246 int isst_get_pbf_info(int cpu, int level, struct isst_pbf_info *pbf_info)
247 {
248 	unsigned int req, resp;
249 	int i, ret;
250 
251 	pbf_info->core_cpumask_size = alloc_cpu_set(&pbf_info->core_cpumask);
252 
253 	for (i = 0; i < 2; ++i) {
254 		unsigned long long mask;
255 		int count;
256 
257 		ret = isst_send_mbox_command(cpu, CONFIG_TDP,
258 					     CONFIG_TDP_PBF_GET_CORE_MASK_INFO,
259 					     0, (i << 8) | level, &resp);
260 		if (ret)
261 			return ret;
262 
263 		debug_printf(
264 			"cpu:%d CONFIG_TDP_PBF_GET_CORE_MASK_INFO resp:%x\n",
265 			cpu, resp);
266 
267 		mask = (unsigned long long)resp << (32 * i);
268 		set_cpu_mask_from_punit_coremask(cpu, mask,
269 						 pbf_info->core_cpumask_size,
270 						 pbf_info->core_cpumask,
271 						 &count);
272 	}
273 
274 	req = level;
275 	ret = isst_send_mbox_command(cpu, CONFIG_TDP,
276 				     CONFIG_TDP_PBF_GET_P1HI_P1LO_INFO, 0, req,
277 				     &resp);
278 	if (ret)
279 		return ret;
280 
281 	debug_printf("cpu:%d CONFIG_TDP_PBF_GET_P1HI_P1LO_INFO resp:%x\n", cpu,
282 		     resp);
283 
284 	pbf_info->p1_low = resp & 0xff;
285 	pbf_info->p1_high = (resp & GENMASK(15, 8)) >> 8;
286 
287 	req = level;
288 	ret = isst_send_mbox_command(
289 		cpu, CONFIG_TDP, CONFIG_TDP_PBF_GET_TDP_INFO, 0, req, &resp);
290 	if (ret)
291 		return ret;
292 
293 	debug_printf("cpu:%d CONFIG_TDP_PBF_GET_TDP_INFO resp:%x\n", cpu, resp);
294 
295 	pbf_info->tdp = resp & 0xffff;
296 
297 	req = level;
298 	ret = isst_send_mbox_command(
299 		cpu, CONFIG_TDP, CONFIG_TDP_PBF_GET_TJ_MAX_INFO, 0, req, &resp);
300 	if (ret)
301 		return ret;
302 
303 	debug_printf("cpu:%d CONFIG_TDP_PBF_GET_TJ_MAX_INFO resp:%x\n", cpu,
304 		     resp);
305 	pbf_info->t_control = (resp >> 8) & 0xff;
306 	pbf_info->t_prochot = resp & 0xff;
307 
308 	return 0;
309 }
310 
311 void isst_get_pbf_info_complete(struct isst_pbf_info *pbf_info)
312 {
313 	free_cpu_set(pbf_info->core_cpumask);
314 }
315 
316 int isst_set_pbf_fact_status(int cpu, int pbf, int enable)
317 {
318 	struct isst_pkg_ctdp pkg_dev;
319 	struct isst_pkg_ctdp_level_info ctdp_level;
320 	int current_level;
321 	unsigned int req = 0, resp;
322 	int ret;
323 
324 	ret = isst_get_ctdp_levels(cpu, &pkg_dev);
325 	if (ret)
326 		return ret;
327 
328 	current_level = pkg_dev.current_level;
329 
330 	ret = isst_get_ctdp_control(cpu, current_level, &ctdp_level);
331 	if (ret)
332 		return ret;
333 
334 	if (pbf) {
335 		if (ctdp_level.fact_enabled)
336 			req = BIT(16);
337 
338 		if (enable)
339 			req |= BIT(17);
340 		else
341 			req &= ~BIT(17);
342 	} else {
343 		if (ctdp_level.pbf_enabled)
344 			req = BIT(17);
345 
346 		if (enable)
347 			req |= BIT(16);
348 		else
349 			req &= ~BIT(16);
350 	}
351 
352 	ret = isst_send_mbox_command(cpu, CONFIG_TDP,
353 				     CONFIG_TDP_SET_TDP_CONTROL, 0, req, &resp);
354 	if (ret)
355 		return ret;
356 
357 	debug_printf("cpu:%d CONFIG_TDP_SET_TDP_CONTROL pbf/fact:%d req:%x\n",
358 		     cpu, pbf, req);
359 
360 	return 0;
361 }
362 
363 int isst_get_fact_bucket_info(int cpu, int level,
364 			      struct isst_fact_bucket_info *bucket_info)
365 {
366 	unsigned int resp;
367 	int i, k, ret;
368 
369 	for (i = 0; i < 2; ++i) {
370 		int j;
371 
372 		ret = isst_send_mbox_command(
373 			cpu, CONFIG_TDP,
374 			CONFIG_TDP_GET_FACT_HP_TURBO_LIMIT_NUMCORES, 0,
375 			(i << 8) | level, &resp);
376 		if (ret)
377 			return ret;
378 
379 		debug_printf(
380 			"cpu:%d CONFIG_TDP_GET_FACT_HP_TURBO_LIMIT_NUMCORES index:%d level:%d resp:%x\n",
381 			cpu, i, level, resp);
382 
383 		for (j = 0; j < 4; ++j) {
384 			bucket_info[j + (i * 4)].high_priority_cores_count =
385 				(resp >> (j * 8)) & 0xff;
386 		}
387 	}
388 
389 	for (k = 0; k < 3; ++k) {
390 		for (i = 0; i < 2; ++i) {
391 			int j;
392 
393 			ret = isst_send_mbox_command(
394 				cpu, CONFIG_TDP,
395 				CONFIG_TDP_GET_FACT_HP_TURBO_LIMIT_RATIOS, 0,
396 				(k << 16) | (i << 8) | level, &resp);
397 			if (ret)
398 				return ret;
399 
400 			debug_printf(
401 				"cpu:%d CONFIG_TDP_GET_FACT_HP_TURBO_LIMIT_RATIOS index:%d level:%d avx:%d resp:%x\n",
402 				cpu, i, level, k, resp);
403 
404 			for (j = 0; j < 4; ++j) {
405 				switch (k) {
406 				case 0:
407 					bucket_info[j + (i * 4)].sse_trl =
408 						(resp >> (j * 8)) & 0xff;
409 					break;
410 				case 1:
411 					bucket_info[j + (i * 4)].avx_trl =
412 						(resp >> (j * 8)) & 0xff;
413 					break;
414 				case 2:
415 					bucket_info[j + (i * 4)].avx512_trl =
416 						(resp >> (j * 8)) & 0xff;
417 					break;
418 				default:
419 					break;
420 				}
421 			}
422 		}
423 	}
424 
425 	return 0;
426 }
427 
428 int isst_get_fact_info(int cpu, int level, struct isst_fact_info *fact_info)
429 {
430 	unsigned int resp;
431 	int ret;
432 
433 	ret = isst_send_mbox_command(cpu, CONFIG_TDP,
434 				     CONFIG_TDP_GET_FACT_LP_CLIPPING_RATIO, 0,
435 				     level, &resp);
436 	if (ret)
437 		return ret;
438 
439 	debug_printf("cpu:%d CONFIG_TDP_GET_FACT_LP_CLIPPING_RATIO resp:%x\n",
440 		     cpu, resp);
441 
442 	fact_info->lp_clipping_ratio_license_sse = resp & 0xff;
443 	fact_info->lp_clipping_ratio_license_avx2 = (resp >> 8) & 0xff;
444 	fact_info->lp_clipping_ratio_license_avx512 = (resp >> 16) & 0xff;
445 
446 	ret = isst_get_fact_bucket_info(cpu, level, fact_info->bucket_info);
447 
448 	return ret;
449 }
450 
451 int isst_set_trl(int cpu, unsigned long long trl)
452 {
453 	int ret;
454 
455 	if (!trl)
456 		trl = 0xFFFFFFFFFFFFFFFFULL;
457 
458 	ret = isst_send_msr_command(cpu, 0x1AD, 1, &trl);
459 	if (ret)
460 		return ret;
461 
462 	return 0;
463 }
464 
465 int isst_set_trl_from_current_tdp(int cpu, unsigned long long trl)
466 {
467 	unsigned long long msr_trl;
468 	int ret;
469 
470 	if (trl) {
471 		msr_trl = trl;
472 	} else {
473 		struct isst_pkg_ctdp pkg_dev;
474 		int trl[8];
475 		int i;
476 
477 		ret = isst_get_ctdp_levels(cpu, &pkg_dev);
478 		if (ret)
479 			return ret;
480 
481 		ret = isst_get_get_trl(cpu, pkg_dev.current_level, 0, trl);
482 		if (ret)
483 			return ret;
484 
485 		msr_trl = 0;
486 		for (i = 0; i < 8; ++i) {
487 			unsigned long long _trl = trl[i];
488 
489 			msr_trl |= (_trl << (i * 8));
490 		}
491 	}
492 	ret = isst_send_msr_command(cpu, 0x1AD, 1, &msr_trl);
493 	if (ret)
494 		return ret;
495 
496 	return 0;
497 }
498 
499 /* Return 1 if locked */
500 int isst_get_config_tdp_lock_status(int cpu)
501 {
502 	unsigned long long tdp_control = 0;
503 	int ret;
504 
505 	ret = isst_send_msr_command(cpu, 0x64b, 0, &tdp_control);
506 	if (ret)
507 		return ret;
508 
509 	ret = !!(tdp_control & BIT(31));
510 
511 	return ret;
512 }
513 
514 void isst_get_process_ctdp_complete(int cpu, struct isst_pkg_ctdp *pkg_dev)
515 {
516 	int i;
517 
518 	if (!pkg_dev->processed)
519 		return;
520 
521 	for (i = 0; i < pkg_dev->levels; ++i) {
522 		struct isst_pkg_ctdp_level_info *ctdp_level;
523 
524 		ctdp_level = &pkg_dev->ctdp_level[i];
525 		if (ctdp_level->pbf_support)
526 			free_cpu_set(ctdp_level->pbf_info.core_cpumask);
527 		free_cpu_set(ctdp_level->core_cpumask);
528 	}
529 }
530 
531 int isst_get_process_ctdp(int cpu, int tdp_level, struct isst_pkg_ctdp *pkg_dev)
532 {
533 	int i, ret;
534 
535 	if (pkg_dev->processed)
536 		return 0;
537 
538 	ret = isst_get_ctdp_levels(cpu, pkg_dev);
539 	if (ret)
540 		return ret;
541 
542 	debug_printf("cpu: %d ctdp enable:%d current level: %d levels:%d\n",
543 		     cpu, pkg_dev->enabled, pkg_dev->current_level,
544 		     pkg_dev->levels);
545 
546 	for (i = 0; i <= pkg_dev->levels; ++i) {
547 		struct isst_pkg_ctdp_level_info *ctdp_level;
548 
549 		if (tdp_level != 0xff && i != tdp_level)
550 			continue;
551 
552 		debug_printf("cpu:%d Get Information for TDP level:%d\n", cpu,
553 			     i);
554 		ctdp_level = &pkg_dev->ctdp_level[i];
555 
556 		ctdp_level->processed = 1;
557 		ctdp_level->level = i;
558 		ctdp_level->control_cpu = cpu;
559 		ctdp_level->pkg_id = get_physical_package_id(cpu);
560 		ctdp_level->die_id = get_physical_die_id(cpu);
561 
562 		ret = isst_get_ctdp_control(cpu, i, ctdp_level);
563 		if (ret)
564 			return ret;
565 
566 		ret = isst_get_tdp_info(cpu, i, ctdp_level);
567 		if (ret)
568 			return ret;
569 
570 		ret = isst_get_pwr_info(cpu, i, ctdp_level);
571 		if (ret)
572 			return ret;
573 
574 		ret = isst_get_tjmax_info(cpu, i, ctdp_level);
575 		if (ret)
576 			return ret;
577 
578 		ctdp_level->core_cpumask_size =
579 			alloc_cpu_set(&ctdp_level->core_cpumask);
580 		ret = isst_get_coremask_info(cpu, i, ctdp_level);
581 		if (ret)
582 			return ret;
583 
584 		ret = isst_get_trl_bucket_info(cpu, &ctdp_level->buckets_info);
585 		if (ret)
586 			return ret;
587 
588 		ret = isst_get_get_trl(cpu, i, 0,
589 				       ctdp_level->trl_sse_active_cores);
590 		if (ret)
591 			return ret;
592 
593 		ret = isst_get_get_trl(cpu, i, 1,
594 				       ctdp_level->trl_avx_active_cores);
595 		if (ret)
596 			return ret;
597 
598 		ret = isst_get_get_trl(cpu, i, 2,
599 				       ctdp_level->trl_avx_512_active_cores);
600 		if (ret)
601 			return ret;
602 
603 		if (ctdp_level->pbf_support) {
604 			ret = isst_get_pbf_info(cpu, i, &ctdp_level->pbf_info);
605 			if (!ret)
606 				ctdp_level->pbf_found = 1;
607 		}
608 
609 		if (ctdp_level->fact_support) {
610 			ret = isst_get_fact_info(cpu, i,
611 						 &ctdp_level->fact_info);
612 			if (ret)
613 				return ret;
614 		}
615 	}
616 
617 	pkg_dev->processed = 1;
618 
619 	return 0;
620 }
621 
622 int isst_clos_get_clos_information(int cpu, int *enable, int *type)
623 {
624 	unsigned int resp;
625 	int ret;
626 
627 	ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG, 0, 0,
628 				     &resp);
629 	if (ret)
630 		return ret;
631 
632 	debug_printf("cpu:%d CLOS_PM_QOS_CONFIG resp:%x\n", cpu, resp);
633 
634 	if (resp & BIT(1))
635 		*enable = 1;
636 	else
637 		*enable = 0;
638 
639 	if (resp & BIT(2))
640 		*type = 1;
641 	else
642 		*type = 0;
643 
644 	return 0;
645 }
646 
647 int isst_pm_qos_config(int cpu, int enable_clos, int priority_type)
648 {
649 	unsigned int req, resp;
650 	int ret;
651 
652 	ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG, 0, 0,
653 				     &resp);
654 	if (ret)
655 		return ret;
656 
657 	debug_printf("cpu:%d CLOS_PM_QOS_CONFIG resp:%x\n", cpu, resp);
658 
659 	req = resp;
660 
661 	if (enable_clos)
662 		req = req | BIT(1);
663 	else
664 		req = req & ~BIT(1);
665 
666 	if (priority_type)
667 		req = req | BIT(2);
668 	else
669 		req = req & ~BIT(2);
670 
671 	ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG,
672 				     BIT(MBOX_CMD_WRITE_BIT), req, &resp);
673 	if (ret)
674 		return ret;
675 
676 	debug_printf("cpu:%d CLOS_PM_QOS_CONFIG priority type:%d req:%x\n", cpu,
677 		     priority_type, req);
678 
679 	return 0;
680 }
681 
682 int isst_pm_get_clos(int cpu, int clos, struct isst_clos_config *clos_config)
683 {
684 	unsigned int resp;
685 	int ret;
686 
687 	ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PM_CLOS, clos, 0,
688 				     &resp);
689 	if (ret)
690 		return ret;
691 
692 	clos_config->pkg_id = get_physical_package_id(cpu);
693 	clos_config->die_id = get_physical_die_id(cpu);
694 
695 	clos_config->epp = resp & 0x0f;
696 	clos_config->clos_prop_prio = (resp >> 4) & 0x0f;
697 	clos_config->clos_min = (resp >> 8) & 0xff;
698 	clos_config->clos_max = (resp >> 16) & 0xff;
699 	clos_config->clos_desired = (resp >> 24) & 0xff;
700 
701 	return 0;
702 }
703 
704 int isst_set_clos(int cpu, int clos, struct isst_clos_config *clos_config)
705 {
706 	unsigned int req, resp;
707 	unsigned int param;
708 	int ret;
709 
710 	req = clos_config->epp & 0x0f;
711 	req |= (clos_config->clos_prop_prio & 0x0f) << 4;
712 	req |= (clos_config->clos_min & 0xff) << 8;
713 	req |= (clos_config->clos_max & 0xff) << 16;
714 	req |= (clos_config->clos_desired & 0xff) << 24;
715 
716 	param = BIT(MBOX_CMD_WRITE_BIT) | clos;
717 
718 	ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PM_CLOS, param, req,
719 				     &resp);
720 	if (ret)
721 		return ret;
722 
723 	debug_printf("cpu:%d CLOS_PM_CLOS param:%x req:%x\n", cpu, param, req);
724 
725 	return 0;
726 }
727 
728 int isst_clos_get_assoc_status(int cpu, int *clos_id)
729 {
730 	unsigned int resp;
731 	unsigned int param;
732 	int core_id, ret;
733 
734 	core_id = find_phy_core_num(cpu);
735 	param = core_id;
736 
737 	ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PQR_ASSOC, param, 0,
738 				     &resp);
739 	if (ret)
740 		return ret;
741 
742 	debug_printf("cpu:%d CLOS_PQR_ASSOC param:%x resp:%x\n", cpu, param,
743 		     resp);
744 	*clos_id = (resp >> 16) & 0x03;
745 
746 	return 0;
747 }
748 
749 int isst_clos_associate(int cpu, int clos_id)
750 {
751 	unsigned int req, resp;
752 	unsigned int param;
753 	int core_id, ret;
754 
755 	req = (clos_id & 0x03) << 16;
756 	core_id = find_phy_core_num(cpu);
757 	param = BIT(MBOX_CMD_WRITE_BIT) | core_id;
758 
759 	ret = isst_send_mbox_command(cpu, CONFIG_CLOS, CLOS_PQR_ASSOC, param,
760 				     req, &resp);
761 	if (ret)
762 		return ret;
763 
764 	debug_printf("cpu:%d CLOS_PQR_ASSOC param:%x req:%x\n", cpu, param,
765 		     req);
766 
767 	return 0;
768 }
769