xref: /openbmc/linux/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c (revision 53ee6609)
1 /*
2  * Copyright 2020 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 
23 #define SWSMU_CODE_LAYER_L4
24 
25 #include "amdgpu.h"
26 #include "amdgpu_smu.h"
27 #include "smu_cmn.h"
28 #include "soc15_common.h"
29 
30 /*
31  * DO NOT use these for err/warn/info/debug messages.
32  * Use dev_err, dev_warn, dev_info and dev_dbg instead.
33  * They are more MGPU friendly.
34  */
35 #undef pr_err
36 #undef pr_warn
37 #undef pr_info
38 #undef pr_debug
39 
40 /*
41  * Although these are defined in each ASIC's specific header file.
42  * They share the same definitions and values. That makes common
43  * APIs for SMC messages issuing for all ASICs possible.
44  */
45 #define mmMP1_SMN_C2PMSG_66                                                                            0x0282
46 #define mmMP1_SMN_C2PMSG_66_BASE_IDX                                                                   0
47 
48 #define mmMP1_SMN_C2PMSG_82                                                                            0x0292
49 #define mmMP1_SMN_C2PMSG_82_BASE_IDX                                                                   0
50 
51 #define mmMP1_SMN_C2PMSG_90                                                                            0x029a
52 #define mmMP1_SMN_C2PMSG_90_BASE_IDX                                                                   0
53 
54 #define MP1_C2PMSG_90__CONTENT_MASK                                                                    0xFFFFFFFFL
55 
56 #undef __SMU_DUMMY_MAP
57 #define __SMU_DUMMY_MAP(type)	#type
58 static const char* __smu_message_names[] = {
59 	SMU_MESSAGE_TYPES
60 };
61 
62 static const char *smu_get_message_name(struct smu_context *smu,
63 					enum smu_message_type type)
64 {
65 	if (type < 0 || type >= SMU_MSG_MAX_COUNT)
66 		return "unknown smu message";
67 
68 	return __smu_message_names[type];
69 }
70 
71 static void smu_cmn_read_arg(struct smu_context *smu,
72 			     uint32_t *arg)
73 {
74 	struct amdgpu_device *adev = smu->adev;
75 
76 	*arg = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_82);
77 }
78 
79 int smu_cmn_wait_for_response(struct smu_context *smu)
80 {
81 	struct amdgpu_device *adev = smu->adev;
82 	uint32_t cur_value, i, timeout = adev->usec_timeout * 20;
83 
84 	for (i = 0; i < timeout; i++) {
85 		cur_value = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
86 		if ((cur_value & MP1_C2PMSG_90__CONTENT_MASK) != 0)
87 			return cur_value;
88 
89 		udelay(1);
90 	}
91 
92 	/* timeout means wrong logic */
93 	if (i == timeout)
94 		return -ETIME;
95 
96 	return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
97 }
98 
99 int smu_cmn_send_msg_without_waiting(struct smu_context *smu,
100 				     uint16_t msg, uint32_t param)
101 {
102 	struct amdgpu_device *adev = smu->adev;
103 	int ret;
104 
105 	ret = smu_cmn_wait_for_response(smu);
106 	if (ret != 0x1) {
107 		dev_err(adev->dev, "Msg issuing pre-check failed and "
108 		       "SMU may be not in the right state!\n");
109 		if (ret != -ETIME)
110 			ret = -EIO;
111 		return ret;
112 	}
113 
114 	WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
115 	WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_82, param);
116 	WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_66, msg);
117 
118 	return 0;
119 }
120 
121 int smu_cmn_send_smc_msg_with_param(struct smu_context *smu,
122 				    enum smu_message_type msg,
123 				    uint32_t param,
124 				    uint32_t *read_arg)
125 {
126 	struct amdgpu_device *adev = smu->adev;
127 	int ret = 0, index = 0;
128 
129 	if (smu->adev->in_pci_err_recovery)
130 		return 0;
131 
132 	index = smu_cmn_to_asic_specific_index(smu,
133 					       CMN2ASIC_MAPPING_MSG,
134 					       msg);
135 	if (index < 0)
136 		return index == -EACCES ? 0 : index;
137 
138 	mutex_lock(&smu->message_lock);
139 	ret = smu_cmn_send_msg_without_waiting(smu, (uint16_t)index, param);
140 	if (ret)
141 		goto out;
142 
143 	ret = smu_cmn_wait_for_response(smu);
144 	if (ret != 0x1) {
145 		if (ret == -ETIME) {
146 			dev_err(adev->dev, "message: %15s (%d) \tparam: 0x%08x is timeout (no response)\n",
147 				smu_get_message_name(smu, msg), index, param);
148 		} else {
149 			dev_err(adev->dev, "failed send message: %15s (%d) \tparam: 0x%08x response %#x\n",
150 				smu_get_message_name(smu, msg), index, param,
151 				ret);
152 			ret = -EIO;
153 		}
154 		goto out;
155 	}
156 
157 	if (read_arg)
158 		smu_cmn_read_arg(smu, read_arg);
159 
160 	ret = 0; /* 0 as driver return value */
161 out:
162 	mutex_unlock(&smu->message_lock);
163 	return ret;
164 }
165 
166 int smu_cmn_send_smc_msg(struct smu_context *smu,
167 			 enum smu_message_type msg,
168 			 uint32_t *read_arg)
169 {
170 	return smu_cmn_send_smc_msg_with_param(smu,
171 					       msg,
172 					       0,
173 					       read_arg);
174 }
175 
176 int smu_cmn_to_asic_specific_index(struct smu_context *smu,
177 				   enum smu_cmn2asic_mapping_type type,
178 				   uint32_t index)
179 {
180 	struct cmn2asic_msg_mapping msg_mapping;
181 	struct cmn2asic_mapping mapping;
182 
183 	switch (type) {
184 	case CMN2ASIC_MAPPING_MSG:
185 		if (index >= SMU_MSG_MAX_COUNT ||
186 		    !smu->message_map)
187 			return -EINVAL;
188 
189 		msg_mapping = smu->message_map[index];
190 		if (!msg_mapping.valid_mapping)
191 			return -EINVAL;
192 
193 		if (amdgpu_sriov_vf(smu->adev) &&
194 		    !msg_mapping.valid_in_vf)
195 			return -EACCES;
196 
197 		return msg_mapping.map_to;
198 
199 	case CMN2ASIC_MAPPING_CLK:
200 		if (index >= SMU_CLK_COUNT ||
201 		    !smu->clock_map)
202 			return -EINVAL;
203 
204 		mapping = smu->clock_map[index];
205 		if (!mapping.valid_mapping)
206 			return -EINVAL;
207 
208 		return mapping.map_to;
209 
210 	case CMN2ASIC_MAPPING_FEATURE:
211 		if (index >= SMU_FEATURE_COUNT ||
212 		    !smu->feature_map)
213 			return -EINVAL;
214 
215 		mapping = smu->feature_map[index];
216 		if (!mapping.valid_mapping)
217 			return -EINVAL;
218 
219 		return mapping.map_to;
220 
221 	case CMN2ASIC_MAPPING_TABLE:
222 		if (index >= SMU_TABLE_COUNT ||
223 		    !smu->table_map)
224 			return -EINVAL;
225 
226 		mapping = smu->table_map[index];
227 		if (!mapping.valid_mapping)
228 			return -EINVAL;
229 
230 		return mapping.map_to;
231 
232 	case CMN2ASIC_MAPPING_PWR:
233 		if (index >= SMU_POWER_SOURCE_COUNT ||
234 		    !smu->pwr_src_map)
235 			return -EINVAL;
236 
237 		mapping = smu->pwr_src_map[index];
238 		if (!mapping.valid_mapping)
239 			return -EINVAL;
240 
241 		return mapping.map_to;
242 
243 	case CMN2ASIC_MAPPING_WORKLOAD:
244 		if (index > PP_SMC_POWER_PROFILE_CUSTOM ||
245 		    !smu->workload_map)
246 			return -EINVAL;
247 
248 		mapping = smu->workload_map[index];
249 		if (!mapping.valid_mapping)
250 			return -EINVAL;
251 
252 		return mapping.map_to;
253 
254 	default:
255 		return -EINVAL;
256 	}
257 }
258 
259 int smu_cmn_feature_is_supported(struct smu_context *smu,
260 				 enum smu_feature_mask mask)
261 {
262 	struct smu_feature *feature = &smu->smu_feature;
263 	int feature_id;
264 	int ret = 0;
265 
266 	feature_id = smu_cmn_to_asic_specific_index(smu,
267 						    CMN2ASIC_MAPPING_FEATURE,
268 						    mask);
269 	if (feature_id < 0)
270 		return 0;
271 
272 	WARN_ON(feature_id > feature->feature_num);
273 
274 	mutex_lock(&feature->mutex);
275 	ret = test_bit(feature_id, feature->supported);
276 	mutex_unlock(&feature->mutex);
277 
278 	return ret;
279 }
280 
281 int smu_cmn_feature_is_enabled(struct smu_context *smu,
282 			       enum smu_feature_mask mask)
283 {
284 	struct smu_feature *feature = &smu->smu_feature;
285 	struct amdgpu_device *adev = smu->adev;
286 	int feature_id;
287 	int ret = 0;
288 
289 	if (smu->is_apu && adev->family < AMDGPU_FAMILY_VGH)
290 		return 1;
291 
292 	feature_id = smu_cmn_to_asic_specific_index(smu,
293 						    CMN2ASIC_MAPPING_FEATURE,
294 						    mask);
295 	if (feature_id < 0)
296 		return 0;
297 
298 	WARN_ON(feature_id > feature->feature_num);
299 
300 	mutex_lock(&feature->mutex);
301 	ret = test_bit(feature_id, feature->enabled);
302 	mutex_unlock(&feature->mutex);
303 
304 	return ret;
305 }
306 
307 bool smu_cmn_clk_dpm_is_enabled(struct smu_context *smu,
308 				enum smu_clk_type clk_type)
309 {
310 	enum smu_feature_mask feature_id = 0;
311 
312 	switch (clk_type) {
313 	case SMU_MCLK:
314 	case SMU_UCLK:
315 		feature_id = SMU_FEATURE_DPM_UCLK_BIT;
316 		break;
317 	case SMU_GFXCLK:
318 	case SMU_SCLK:
319 		feature_id = SMU_FEATURE_DPM_GFXCLK_BIT;
320 		break;
321 	case SMU_SOCCLK:
322 		feature_id = SMU_FEATURE_DPM_SOCCLK_BIT;
323 		break;
324 	default:
325 		return true;
326 	}
327 
328 	if (!smu_cmn_feature_is_enabled(smu, feature_id))
329 		return false;
330 
331 	return true;
332 }
333 
334 int smu_cmn_get_enabled_mask(struct smu_context *smu,
335 			     uint32_t *feature_mask,
336 			     uint32_t num)
337 {
338 	uint32_t feature_mask_high = 0, feature_mask_low = 0;
339 	struct smu_feature *feature = &smu->smu_feature;
340 	int ret = 0;
341 
342 	if (!feature_mask || num < 2)
343 		return -EINVAL;
344 
345 	if (bitmap_empty(feature->enabled, feature->feature_num)) {
346 		ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesHigh, &feature_mask_high);
347 		if (ret)
348 			return ret;
349 
350 		ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesLow, &feature_mask_low);
351 		if (ret)
352 			return ret;
353 
354 		feature_mask[0] = feature_mask_low;
355 		feature_mask[1] = feature_mask_high;
356 	} else {
357 		bitmap_copy((unsigned long *)feature_mask, feature->enabled,
358 			     feature->feature_num);
359 	}
360 
361 	return ret;
362 }
363 
364 int smu_cmn_get_enabled_32_bits_mask(struct smu_context *smu,
365 					uint32_t *feature_mask,
366 					uint32_t num)
367 {
368 	uint32_t feature_mask_en_low = 0;
369 	uint32_t feature_mask_en_high = 0;
370 	struct smu_feature *feature = &smu->smu_feature;
371 	int ret = 0;
372 
373 	if (!feature_mask || num < 2)
374 		return -EINVAL;
375 
376 	if (bitmap_empty(feature->enabled, feature->feature_num)) {
377 		ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_GetEnabledSmuFeatures, 0,
378 										 &feature_mask_en_low);
379 
380 		if (ret)
381 			return ret;
382 
383 		ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_GetEnabledSmuFeatures, 1,
384 										 &feature_mask_en_high);
385 
386 		if (ret)
387 			return ret;
388 
389 		feature_mask[0] = feature_mask_en_low;
390 		feature_mask[1] = feature_mask_en_high;
391 
392 	} else {
393 		bitmap_copy((unsigned long *)feature_mask, feature->enabled,
394 				 feature->feature_num);
395 	}
396 
397 	return ret;
398 
399 }
400 
401 int smu_cmn_feature_update_enable_state(struct smu_context *smu,
402 					uint64_t feature_mask,
403 					bool enabled)
404 {
405 	struct smu_feature *feature = &smu->smu_feature;
406 	int ret = 0;
407 
408 	if (enabled) {
409 		ret = smu_cmn_send_smc_msg_with_param(smu,
410 						  SMU_MSG_EnableSmuFeaturesLow,
411 						  lower_32_bits(feature_mask),
412 						  NULL);
413 		if (ret)
414 			return ret;
415 		ret = smu_cmn_send_smc_msg_with_param(smu,
416 						  SMU_MSG_EnableSmuFeaturesHigh,
417 						  upper_32_bits(feature_mask),
418 						  NULL);
419 		if (ret)
420 			return ret;
421 	} else {
422 		ret = smu_cmn_send_smc_msg_with_param(smu,
423 						  SMU_MSG_DisableSmuFeaturesLow,
424 						  lower_32_bits(feature_mask),
425 						  NULL);
426 		if (ret)
427 			return ret;
428 		ret = smu_cmn_send_smc_msg_with_param(smu,
429 						  SMU_MSG_DisableSmuFeaturesHigh,
430 						  upper_32_bits(feature_mask),
431 						  NULL);
432 		if (ret)
433 			return ret;
434 	}
435 
436 	mutex_lock(&feature->mutex);
437 	if (enabled)
438 		bitmap_or(feature->enabled, feature->enabled,
439 				(unsigned long *)(&feature_mask), SMU_FEATURE_MAX);
440 	else
441 		bitmap_andnot(feature->enabled, feature->enabled,
442 				(unsigned long *)(&feature_mask), SMU_FEATURE_MAX);
443 	mutex_unlock(&feature->mutex);
444 
445 	return ret;
446 }
447 
448 int smu_cmn_feature_set_enabled(struct smu_context *smu,
449 				enum smu_feature_mask mask,
450 				bool enable)
451 {
452 	struct smu_feature *feature = &smu->smu_feature;
453 	int feature_id;
454 
455 	feature_id = smu_cmn_to_asic_specific_index(smu,
456 						    CMN2ASIC_MAPPING_FEATURE,
457 						    mask);
458 	if (feature_id < 0)
459 		return -EINVAL;
460 
461 	WARN_ON(feature_id > feature->feature_num);
462 
463 	return smu_cmn_feature_update_enable_state(smu,
464 					       1ULL << feature_id,
465 					       enable);
466 }
467 
468 #undef __SMU_DUMMY_MAP
469 #define __SMU_DUMMY_MAP(fea)	#fea
470 static const char* __smu_feature_names[] = {
471 	SMU_FEATURE_MASKS
472 };
473 
474 static const char *smu_get_feature_name(struct smu_context *smu,
475 					enum smu_feature_mask feature)
476 {
477 	if (feature < 0 || feature >= SMU_FEATURE_COUNT)
478 		return "unknown smu feature";
479 	return __smu_feature_names[feature];
480 }
481 
482 size_t smu_cmn_get_pp_feature_mask(struct smu_context *smu,
483 				   char *buf)
484 {
485 	uint32_t feature_mask[2] = { 0 };
486 	int feature_index = 0;
487 	uint32_t count = 0;
488 	int8_t sort_feature[SMU_FEATURE_COUNT];
489 	size_t size = 0;
490 	int ret = 0, i;
491 
492 	if (!smu->is_apu) {
493 		ret = smu_cmn_get_enabled_mask(smu,
494 						feature_mask,
495 						2);
496 		if (ret)
497 			return 0;
498 	} else {
499 		ret = smu_cmn_get_enabled_32_bits_mask(smu,
500 					feature_mask,
501 					2);
502 		if (ret)
503 			return 0;
504 	}
505 
506 	size =  sprintf(buf + size, "features high: 0x%08x low: 0x%08x\n",
507 			feature_mask[1], feature_mask[0]);
508 
509 	memset(sort_feature, -1, sizeof(sort_feature));
510 
511 	for (i = 0; i < SMU_FEATURE_COUNT; i++) {
512 		feature_index = smu_cmn_to_asic_specific_index(smu,
513 							       CMN2ASIC_MAPPING_FEATURE,
514 							       i);
515 		if (feature_index < 0)
516 			continue;
517 
518 		sort_feature[feature_index] = i;
519 	}
520 
521 	size += sprintf(buf + size, "%-2s. %-20s  %-3s : %-s\n",
522 			"No", "Feature", "Bit", "State");
523 
524 	for (i = 0; i < SMU_FEATURE_COUNT; i++) {
525 		if (sort_feature[i] < 0)
526 			continue;
527 
528 		size += sprintf(buf + size, "%02d. %-20s (%2d) : %s\n",
529 				count++,
530 				smu_get_feature_name(smu, sort_feature[i]),
531 				i,
532 				!!smu_cmn_feature_is_enabled(smu, sort_feature[i]) ?
533 				"enabled" : "disabled");
534 	}
535 
536 	return size;
537 }
538 
539 int smu_cmn_set_pp_feature_mask(struct smu_context *smu,
540 				uint64_t new_mask)
541 {
542 	int ret = 0;
543 	uint32_t feature_mask[2] = { 0 };
544 	uint64_t feature_2_enabled = 0;
545 	uint64_t feature_2_disabled = 0;
546 	uint64_t feature_enables = 0;
547 
548 	ret = smu_cmn_get_enabled_mask(smu,
549 				       feature_mask,
550 				       2);
551 	if (ret)
552 		return ret;
553 
554 	feature_enables = ((uint64_t)feature_mask[1] << 32 |
555 			   (uint64_t)feature_mask[0]);
556 
557 	feature_2_enabled  = ~feature_enables & new_mask;
558 	feature_2_disabled = feature_enables & ~new_mask;
559 
560 	if (feature_2_enabled) {
561 		ret = smu_cmn_feature_update_enable_state(smu,
562 							  feature_2_enabled,
563 							  true);
564 		if (ret)
565 			return ret;
566 	}
567 	if (feature_2_disabled) {
568 		ret = smu_cmn_feature_update_enable_state(smu,
569 							  feature_2_disabled,
570 							  false);
571 		if (ret)
572 			return ret;
573 	}
574 
575 	return ret;
576 }
577 
578 int smu_cmn_disable_all_features_with_exception(struct smu_context *smu,
579 						enum smu_feature_mask mask)
580 {
581 	uint64_t features_to_disable = U64_MAX;
582 	int skipped_feature_id;
583 
584 	skipped_feature_id = smu_cmn_to_asic_specific_index(smu,
585 							    CMN2ASIC_MAPPING_FEATURE,
586 							    mask);
587 	if (skipped_feature_id < 0)
588 		return -EINVAL;
589 
590 	features_to_disable &= ~(1ULL << skipped_feature_id);
591 
592 	return smu_cmn_feature_update_enable_state(smu,
593 						   features_to_disable,
594 						   0);
595 }
596 
597 int smu_cmn_get_smc_version(struct smu_context *smu,
598 			    uint32_t *if_version,
599 			    uint32_t *smu_version)
600 {
601 	int ret = 0;
602 
603 	if (!if_version && !smu_version)
604 		return -EINVAL;
605 
606 	if (smu->smc_fw_if_version && smu->smc_fw_version)
607 	{
608 		if (if_version)
609 			*if_version = smu->smc_fw_if_version;
610 
611 		if (smu_version)
612 			*smu_version = smu->smc_fw_version;
613 
614 		return 0;
615 	}
616 
617 	if (if_version) {
618 		ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetDriverIfVersion, if_version);
619 		if (ret)
620 			return ret;
621 
622 		smu->smc_fw_if_version = *if_version;
623 	}
624 
625 	if (smu_version) {
626 		ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetSmuVersion, smu_version);
627 		if (ret)
628 			return ret;
629 
630 		smu->smc_fw_version = *smu_version;
631 	}
632 
633 	return ret;
634 }
635 
636 int smu_cmn_update_table(struct smu_context *smu,
637 			 enum smu_table_id table_index,
638 			 int argument,
639 			 void *table_data,
640 			 bool drv2smu)
641 {
642 	struct smu_table_context *smu_table = &smu->smu_table;
643 	struct amdgpu_device *adev = smu->adev;
644 	struct smu_table *table = &smu_table->driver_table;
645 	int table_id = smu_cmn_to_asic_specific_index(smu,
646 						      CMN2ASIC_MAPPING_TABLE,
647 						      table_index);
648 	uint32_t table_size;
649 	int ret = 0;
650 	if (!table_data || table_id >= SMU_TABLE_COUNT || table_id < 0)
651 		return -EINVAL;
652 
653 	table_size = smu_table->tables[table_index].size;
654 
655 	if (drv2smu) {
656 		memcpy(table->cpu_addr, table_data, table_size);
657 		/*
658 		 * Flush hdp cache: to guard the content seen by
659 		 * GPU is consitent with CPU.
660 		 */
661 		amdgpu_asic_flush_hdp(adev, NULL);
662 	}
663 
664 	ret = smu_cmn_send_smc_msg_with_param(smu, drv2smu ?
665 					  SMU_MSG_TransferTableDram2Smu :
666 					  SMU_MSG_TransferTableSmu2Dram,
667 					  table_id | ((argument & 0xFFFF) << 16),
668 					  NULL);
669 	if (ret)
670 		return ret;
671 
672 	if (!drv2smu) {
673 		amdgpu_asic_invalidate_hdp(adev, NULL);
674 		memcpy(table_data, table->cpu_addr, table_size);
675 	}
676 
677 	return 0;
678 }
679 
680 int smu_cmn_write_watermarks_table(struct smu_context *smu)
681 {
682 	void *watermarks_table = smu->smu_table.watermarks_table;
683 
684 	if (!watermarks_table)
685 		return -EINVAL;
686 
687 	return smu_cmn_update_table(smu,
688 				    SMU_TABLE_WATERMARKS,
689 				    0,
690 				    watermarks_table,
691 				    true);
692 }
693 
694 int smu_cmn_write_pptable(struct smu_context *smu)
695 {
696 	void *pptable = smu->smu_table.driver_pptable;
697 
698 	return smu_cmn_update_table(smu,
699 				    SMU_TABLE_PPTABLE,
700 				    0,
701 				    pptable,
702 				    true);
703 }
704 
705 int smu_cmn_get_metrics_table_locked(struct smu_context *smu,
706 				     void *metrics_table,
707 				     bool bypass_cache)
708 {
709 	struct smu_table_context *smu_table= &smu->smu_table;
710 	uint32_t table_size =
711 		smu_table->tables[SMU_TABLE_SMU_METRICS].size;
712 	int ret = 0;
713 
714 	if (bypass_cache ||
715 	    !smu_table->metrics_time ||
716 	    time_after(jiffies, smu_table->metrics_time + msecs_to_jiffies(1))) {
717 		ret = smu_cmn_update_table(smu,
718 				       SMU_TABLE_SMU_METRICS,
719 				       0,
720 				       smu_table->metrics_table,
721 				       false);
722 		if (ret) {
723 			dev_info(smu->adev->dev, "Failed to export SMU metrics table!\n");
724 			return ret;
725 		}
726 		smu_table->metrics_time = jiffies;
727 	}
728 
729 	if (metrics_table)
730 		memcpy(metrics_table, smu_table->metrics_table, table_size);
731 
732 	return 0;
733 }
734 
735 int smu_cmn_get_metrics_table(struct smu_context *smu,
736 			      void *metrics_table,
737 			      bool bypass_cache)
738 {
739 	int ret = 0;
740 
741 	mutex_lock(&smu->metrics_lock);
742 	ret = smu_cmn_get_metrics_table_locked(smu,
743 					       metrics_table,
744 					       bypass_cache);
745 	mutex_unlock(&smu->metrics_lock);
746 
747 	return ret;
748 }
749 
750 void smu_cmn_init_soft_gpu_metrics(void *table, uint8_t frev, uint8_t crev)
751 {
752 	struct metrics_table_header *header = (struct metrics_table_header *)table;
753 	uint16_t structure_size;
754 
755 #define METRICS_VERSION(a, b)	((a << 16) | b )
756 
757 	switch (METRICS_VERSION(frev, crev)) {
758 	case METRICS_VERSION(1, 0):
759 		structure_size = sizeof(struct gpu_metrics_v1_0);
760 		break;
761 	case METRICS_VERSION(1, 1):
762 		structure_size = sizeof(struct gpu_metrics_v1_1);
763 		break;
764 	case METRICS_VERSION(2, 0):
765 		structure_size = sizeof(struct gpu_metrics_v2_0);
766 		break;
767 	case METRICS_VERSION(2, 1):
768 		structure_size = sizeof(struct gpu_metrics_v2_1);
769 		break;
770 	default:
771 		return;
772 	}
773 
774 #undef METRICS_VERSION
775 
776 	memset(header, 0xFF, structure_size);
777 
778 	header->format_revision = frev;
779 	header->content_revision = crev;
780 	header->structure_size = structure_size;
781 
782 }
783 
784 int smu_cmn_set_mp1_state(struct smu_context *smu,
785 			  enum pp_mp1_state mp1_state)
786 {
787 	enum smu_message_type msg;
788 	int ret;
789 
790 	switch (mp1_state) {
791 	case PP_MP1_STATE_SHUTDOWN:
792 		msg = SMU_MSG_PrepareMp1ForShutdown;
793 		break;
794 	case PP_MP1_STATE_UNLOAD:
795 		msg = SMU_MSG_PrepareMp1ForUnload;
796 		break;
797 	case PP_MP1_STATE_RESET:
798 		msg = SMU_MSG_PrepareMp1ForReset;
799 		break;
800 	case PP_MP1_STATE_NONE:
801 	default:
802 		return 0;
803 	}
804 
805 	ret = smu_cmn_send_smc_msg(smu, msg, NULL);
806 	if (ret)
807 		dev_err(smu->adev->dev, "[PrepareMp1] Failed!\n");
808 
809 	return ret;
810 }
811