summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/amdkfd/kfd_dbgdev.c
blob: d59f2cd056c648ee9d64c43c3fadda140b9b4dc1 (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
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
/*
 * Copyright 2014 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/log2.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/device.h>

#include "kfd_pm4_headers.h"
#include "kfd_pm4_headers_diq.h"
#include "kfd_kernel_queue.h"
#include "kfd_priv.h"
#include "kfd_pm4_opcodes.h"
#include "cik_regs.h"
#include "kfd_dbgmgr.h"
#include "kfd_dbgdev.h"
#include "kfd_device_queue_manager.h"

static void dbgdev_address_watch_disable_nodiq(struct kfd_dev *dev)
{
	dev->kfd2kgd->address_watch_disable(dev->kgd);
}

static int dbgdev_diq_submit_ib(struct kfd_dbgdev *dbgdev,
				unsigned int pasid, uint64_t vmid0_address,
				uint32_t *packet_buff, size_t size_in_bytes)
{
	struct pm4__release_mem *rm_packet;
	struct pm4__indirect_buffer_pasid *ib_packet;
	struct kfd_mem_obj *mem_obj;
	size_t pq_packets_size_in_bytes;
	union ULARGE_INTEGER *largep;
	union ULARGE_INTEGER addr;
	struct kernel_queue *kq;
	uint64_t *rm_state;
	unsigned int *ib_packet_buff;
	int status;

	if (WARN_ON(!size_in_bytes))
		return -EINVAL;

	kq = dbgdev->kq;

	pq_packets_size_in_bytes = sizeof(struct pm4__release_mem) +
				sizeof(struct pm4__indirect_buffer_pasid);

	/*
	 * We acquire a buffer from DIQ
	 * The receive packet buff will be sitting on the Indirect Buffer
	 * and in the PQ we put the IB packet + sync packet(s).
	 */
	status = kq->ops.acquire_packet_buffer(kq,
				pq_packets_size_in_bytes / sizeof(uint32_t),
				&ib_packet_buff);
	if (status) {
		pr_err("acquire_packet_buffer failed\n");
		return status;
	}

	memset(ib_packet_buff, 0, pq_packets_size_in_bytes);

	ib_packet = (struct pm4__indirect_buffer_pasid *) (ib_packet_buff);

	ib_packet->header.count = 3;
	ib_packet->header.opcode = IT_INDIRECT_BUFFER_PASID;
	ib_packet->header.type = PM4_TYPE_3;

	largep = (union ULARGE_INTEGER *) &vmid0_address;

	ib_packet->bitfields2.ib_base_lo = largep->u.low_part >> 2;
	ib_packet->bitfields3.ib_base_hi = largep->u.high_part;

	ib_packet->control = (1 << 23) | (1 << 31) |
			((size_in_bytes / 4) & 0xfffff);

	ib_packet->bitfields5.pasid = pasid;

	/*
	 * for now we use release mem for GPU-CPU synchronization
	 * Consider WaitRegMem + WriteData as a better alternative
	 * we get a GART allocations ( gpu/cpu mapping),
	 * for the sync variable, and wait until:
	 * (a) Sync with HW
	 * (b) Sync var is written by CP to mem.
	 */
	rm_packet = (struct pm4__release_mem *) (ib_packet_buff +
			(sizeof(struct pm4__indirect_buffer_pasid) /
					sizeof(unsigned int)));

	status = kfd_gtt_sa_allocate(dbgdev->dev, sizeof(uint64_t),
					&mem_obj);

	if (status) {
		pr_err("Failed to allocate GART memory\n");
		kq->ops.rollback_packet(kq);
		return status;
	}

	rm_state = (uint64_t *) mem_obj->cpu_ptr;

	*rm_state = QUEUESTATE__ACTIVE_COMPLETION_PENDING;

	rm_packet->header.opcode = IT_RELEASE_MEM;
	rm_packet->header.type = PM4_TYPE_3;
	rm_packet->header.count = sizeof(struct pm4__release_mem) / 4 - 2;

	rm_packet->bitfields2.event_type = CACHE_FLUSH_AND_INV_TS_EVENT;
	rm_packet->bitfields2.event_index =
				event_index___release_mem__end_of_pipe;

	rm_packet->bitfields2.cache_policy = cache_policy___release_mem__lru;
	rm_packet->bitfields2.atc = 0;
	rm_packet->bitfields2.tc_wb_action_ena = 1;

	addr.quad_part = mem_obj->gpu_addr;

	rm_packet->bitfields4.address_lo_32b = addr.u.low_part >> 2;
	rm_packet->address_hi = addr.u.high_part;

	rm_packet->bitfields3.data_sel =
				data_sel___release_mem__send_64_bit_data;

	rm_packet->bitfields3.int_sel =
			int_sel___release_mem__send_data_after_write_confirm;

	rm_packet->bitfields3.dst_sel =
			dst_sel___release_mem__memory_controller;

	rm_packet->data_lo = QUEUESTATE__ACTIVE;

	kq->ops.submit_packet(kq);

	/* Wait till CP writes sync code: */
	status = amdkfd_fence_wait_timeout(
			(unsigned int *) rm_state,
			QUEUESTATE__ACTIVE, 1500);

	kfd_gtt_sa_free(dbgdev->dev, mem_obj);

	return status;
}

static int dbgdev_register_nodiq(struct kfd_dbgdev *dbgdev)
{
	/*
	 * no action is needed in this case,
	 * just make sure diq will not be used
	 */

	dbgdev->kq = NULL;

	return 0;
}

static int dbgdev_register_diq(struct kfd_dbgdev *dbgdev)
{
	struct queue_properties properties;
	unsigned int qid;
	struct kernel_queue *kq = NULL;
	int status;

	properties.type = KFD_QUEUE_TYPE_DIQ;

	status = pqm_create_queue(dbgdev->pqm, dbgdev->dev, NULL,
				&properties, &qid);

	if (status) {
		pr_err("Failed to create DIQ\n");
		return status;
	}

	pr_debug("DIQ Created with queue id: %d\n", qid);

	kq = pqm_get_kernel_queue(dbgdev->pqm, qid);

	if (!kq) {
		pr_err("Error getting DIQ\n");
		pqm_destroy_queue(dbgdev->pqm, qid);
		return -EFAULT;
	}

	dbgdev->kq = kq;

	return status;
}

static int dbgdev_unregister_nodiq(struct kfd_dbgdev *dbgdev)
{
	/* disable watch address */
	dbgdev_address_watch_disable_nodiq(dbgdev->dev);
	return 0;
}

static int dbgdev_unregister_diq(struct kfd_dbgdev *dbgdev)
{
	/* todo - disable address watch */
	int status;

	status = pqm_destroy_queue(dbgdev->pqm,
			dbgdev->kq->queue->properties.queue_id);
	dbgdev->kq = NULL;

	return status;
}

static void dbgdev_address_watch_set_registers(
			const struct dbg_address_watch_info *adw_info,
			union TCP_WATCH_ADDR_H_BITS *addrHi,
			union TCP_WATCH_ADDR_L_BITS *addrLo,
			union TCP_WATCH_CNTL_BITS *cntl,
			unsigned int index, unsigned int vmid)
{
	union ULARGE_INTEGER addr;

	addr.quad_part = 0;
	addrHi->u32All = 0;
	addrLo->u32All = 0;
	cntl->u32All = 0;

	if (adw_info->watch_mask)
		cntl->bitfields.mask =
			(uint32_t) (adw_info->watch_mask[index] &
					ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK);
	else
		cntl->bitfields.mask = ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK;

	addr.quad_part = (unsigned long long) adw_info->watch_address[index];

	addrHi->bitfields.addr = addr.u.high_part &
					ADDRESS_WATCH_REG_ADDHIGH_MASK;
	addrLo->bitfields.addr =
			(addr.u.low_part >> ADDRESS_WATCH_REG_ADDLOW_SHIFT);

	cntl->bitfields.mode = adw_info->watch_mode[index];
	cntl->bitfields.vmid = (uint32_t) vmid;
	/* for now assume it is an ATC address */
	cntl->u32All |= ADDRESS_WATCH_REG_CNTL_ATC_BIT;

	pr_debug("\t\t%20s %08x\n", "set reg mask :", cntl->bitfields.mask);
	pr_debug("\t\t%20s %08x\n", "set reg add high :",
			addrHi->bitfields.addr);
	pr_debug("\t\t%20s %08x\n", "set reg add low :",
			addrLo->bitfields.addr);
}

static int dbgdev_address_watch_nodiq(struct kfd_dbgdev *dbgdev,
				      struct dbg_address_watch_info *adw_info)
{
	union TCP_WATCH_ADDR_H_BITS addrHi;
	union TCP_WATCH_ADDR_L_BITS addrLo;
	union TCP_WATCH_CNTL_BITS cntl;
	struct kfd_process_device *pdd;
	unsigned int i;

	/* taking the vmid for that process on the safe way using pdd */
	pdd = kfd_get_process_device_data(dbgdev->dev,
					adw_info->process);
	if (!pdd) {
		pr_err("Failed to get pdd for wave control no DIQ\n");
		return -EFAULT;
	}

	addrHi.u32All = 0;
	addrLo.u32All = 0;
	cntl.u32All = 0;

	if ((adw_info->num_watch_points > MAX_WATCH_ADDRESSES) ||
			(adw_info->num_watch_points == 0)) {
		pr_err("num_watch_points is invalid\n");
		return -EINVAL;
	}

	if (!adw_info->watch_mode || !adw_info->watch_address) {
		pr_err("adw_info fields are not valid\n");
		return -EINVAL;
	}

	for (i = 0; i < adw_info->num_watch_points; i++) {
		dbgdev_address_watch_set_registers(adw_info, &addrHi, &addrLo,
						&cntl, i, pdd->qpd.vmid);

		pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *");
		pr_debug("\t\t%20s %08x\n", "register index :", i);
		pr_debug("\t\t%20s %08x\n", "vmid is :", pdd->qpd.vmid);
		pr_debug("\t\t%20s %08x\n", "Address Low is :",
				addrLo.bitfields.addr);
		pr_debug("\t\t%20s %08x\n", "Address high is :",
				addrHi.bitfields.addr);
		pr_debug("\t\t%20s %08x\n", "Address high is :",
				addrHi.bitfields.addr);
		pr_debug("\t\t%20s %08x\n", "Control Mask is :",
				cntl.bitfields.mask);
		pr_debug("\t\t%20s %08x\n", "Control Mode is :",
				cntl.bitfields.mode);
		pr_debug("\t\t%20s %08x\n", "Control Vmid is :",
				cntl.bitfields.vmid);
		pr_debug("\t\t%20s %08x\n", "Control atc  is :",
				cntl.bitfields.atc);
		pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *");

		pdd->dev->kfd2kgd->address_watch_execute(
						dbgdev->dev->kgd,
						i,
						cntl.u32All,
						addrHi.u32All,
						addrLo.u32All);
	}

	return 0;
}

static int dbgdev_address_watch_diq(struct kfd_dbgdev *dbgdev,
				    struct dbg_address_watch_info *adw_info)
{
	struct pm4__set_config_reg *packets_vec;
	union TCP_WATCH_ADDR_H_BITS addrHi;
	union TCP_WATCH_ADDR_L_BITS addrLo;
	union TCP_WATCH_CNTL_BITS cntl;
	struct kfd_mem_obj *mem_obj;
	unsigned int aw_reg_add_dword;
	uint32_t *packet_buff_uint;
	unsigned int i;
	int status;
	size_t ib_size = sizeof(struct pm4__set_config_reg) * 4;
	/* we do not control the vmid in DIQ mode, just a place holder */
	unsigned int vmid = 0;

	addrHi.u32All = 0;
	addrLo.u32All = 0;
	cntl.u32All = 0;

	if ((adw_info->num_watch_points > MAX_WATCH_ADDRESSES) ||
			(adw_info->num_watch_points == 0)) {
		pr_err("num_watch_points is invalid\n");
		return -EINVAL;
	}

	if (!adw_info->watch_mode || !adw_info->watch_address) {
		pr_err("adw_info fields are not valid\n");
		return -EINVAL;
	}

	status = kfd_gtt_sa_allocate(dbgdev->dev, ib_size, &mem_obj);

	if (status) {
		pr_err("Failed to allocate GART memory\n");
		return status;
	}

	packet_buff_uint = mem_obj->cpu_ptr;

	memset(packet_buff_uint, 0, ib_size);

	packets_vec = (struct pm4__set_config_reg *) (packet_buff_uint);

	packets_vec[0].header.count = 1;
	packets_vec[0].header.opcode = IT_SET_CONFIG_REG;
	packets_vec[0].header.type = PM4_TYPE_3;
	packets_vec[0].bitfields2.vmid_shift = ADDRESS_WATCH_CNTL_OFFSET;
	packets_vec[0].bitfields2.insert_vmid = 1;
	packets_vec[1].ordinal1 = packets_vec[0].ordinal1;
	packets_vec[1].bitfields2.insert_vmid = 0;
	packets_vec[2].ordinal1 = packets_vec[0].ordinal1;
	packets_vec[2].bitfields2.insert_vmid = 0;
	packets_vec[3].ordinal1 = packets_vec[0].ordinal1;
	packets_vec[3].bitfields2.vmid_shift = ADDRESS_WATCH_CNTL_OFFSET;
	packets_vec[3].bitfields2.insert_vmid = 1;

	for (i = 0; i < adw_info->num_watch_points; i++) {
		dbgdev_address_watch_set_registers(adw_info,
						&addrHi,
						&addrLo,
						&cntl,
						i,
						vmid);

		pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *");
		pr_debug("\t\t%20s %08x\n", "register index :", i);
		pr_debug("\t\t%20s %08x\n", "vmid is :", vmid);
		pr_debug("\t\t%20s %p\n", "Add ptr is :",
				adw_info->watch_address);
		pr_debug("\t\t%20s %08llx\n", "Add     is :",
				adw_info->watch_address[i]);
		pr_debug("\t\t%20s %08x\n", "Address Low is :",
				addrLo.bitfields.addr);
		pr_debug("\t\t%20s %08x\n", "Address high is :",
				addrHi.bitfields.addr);
		pr_debug("\t\t%20s %08x\n", "Control Mask is :",
				cntl.bitfields.mask);
		pr_debug("\t\t%20s %08x\n", "Control Mode is :",
				cntl.bitfields.mode);
		pr_debug("\t\t%20s %08x\n", "Control Vmid is :",
				cntl.bitfields.vmid);
		pr_debug("\t\t%20s %08x\n", "Control atc  is :",
				cntl.bitfields.atc);
		pr_debug("\t\t%30s\n", "* * * * * * * * * * * * * * * * * *");

		aw_reg_add_dword =
				dbgdev->dev->kfd2kgd->address_watch_get_offset(
					dbgdev->dev->kgd,
					i,
					ADDRESS_WATCH_REG_CNTL);

		packets_vec[0].bitfields2.reg_offset =
					aw_reg_add_dword - AMD_CONFIG_REG_BASE;

		packets_vec[0].reg_data[0] = cntl.u32All;

		aw_reg_add_dword =
				dbgdev->dev->kfd2kgd->address_watch_get_offset(
					dbgdev->dev->kgd,
					i,
					ADDRESS_WATCH_REG_ADDR_HI);

		packets_vec[1].bitfields2.reg_offset =
					aw_reg_add_dword - AMD_CONFIG_REG_BASE;
		packets_vec[1].reg_data[0] = addrHi.u32All;

		aw_reg_add_dword =
				dbgdev->dev->kfd2kgd->address_watch_get_offset(
					dbgdev->dev->kgd,
					i,
					ADDRESS_WATCH_REG_ADDR_LO);

		packets_vec[2].bitfields2.reg_offset =
				aw_reg_add_dword - AMD_CONFIG_REG_BASE;
		packets_vec[2].reg_data[0] = addrLo.u32All;

		/* enable watch flag if address is not zero*/
		if (adw_info->watch_address[i] > 0)
			cntl.bitfields.valid = 1;
		else
			cntl.bitfields.valid = 0;

		aw_reg_add_dword =
				dbgdev->dev->kfd2kgd->address_watch_get_offset(
					dbgdev->dev->kgd,
					i,
					ADDRESS_WATCH_REG_CNTL);

		packets_vec[3].bitfields2.reg_offset =
					aw_reg_add_dword - AMD_CONFIG_REG_BASE;
		packets_vec[3].reg_data[0] = cntl.u32All;

		status = dbgdev_diq_submit_ib(
					dbgdev,
					adw_info->process->pasid,
					mem_obj->gpu_addr,
					packet_buff_uint,
					ib_size);

		if (status) {
			pr_err("Failed to submit IB to DIQ\n");
			break;
		}
	}

	kfd_gtt_sa_free(dbgdev->dev, mem_obj);
	return status;
}

static int dbgdev_wave_control_set_registers(
				struct dbg_wave_control_info *wac_info,
				union SQ_CMD_BITS *in_reg_sq_cmd,
				union GRBM_GFX_INDEX_BITS *in_reg_gfx_index)
{
	int status = 0;
	union SQ_CMD_BITS reg_sq_cmd;
	union GRBM_GFX_INDEX_BITS reg_gfx_index;
	struct HsaDbgWaveMsgAMDGen2 *pMsg;

	reg_sq_cmd.u32All = 0;
	reg_gfx_index.u32All = 0;
	pMsg = &wac_info->dbgWave_msg.DbgWaveMsg.WaveMsgInfoGen2;

	switch (wac_info->mode) {
	/* Send command to single wave */
	case HSA_DBG_WAVEMODE_SINGLE:
		/*
		 * Limit access to the process waves only,
		 * by setting vmid check
		 */
		reg_sq_cmd.bits.check_vmid = 1;
		reg_sq_cmd.bits.simd_id = pMsg->ui32.SIMD;
		reg_sq_cmd.bits.wave_id = pMsg->ui32.WaveId;
		reg_sq_cmd.bits.mode = SQ_IND_CMD_MODE_SINGLE;

		reg_gfx_index.bits.sh_index = pMsg->ui32.ShaderArray;
		reg_gfx_index.bits.se_index = pMsg->ui32.ShaderEngine;
		reg_gfx_index.bits.instance_index = pMsg->ui32.HSACU;

		break;

	/* Send command to all waves with matching VMID */
	case HSA_DBG_WAVEMODE_BROADCAST_PROCESS:

		reg_gfx_index.bits.sh_broadcast_writes = 1;
		reg_gfx_index.bits.se_broadcast_writes = 1;
		reg_gfx_index.bits.instance_broadcast_writes = 1;

		reg_sq_cmd.bits.mode = SQ_IND_CMD_MODE_BROADCAST;

		break;

	/* Send command to all CU waves with matching VMID */
	case HSA_DBG_WAVEMODE_BROADCAST_PROCESS_CU:

		reg_sq_cmd.bits.check_vmid = 1;
		reg_sq_cmd.bits.mode = SQ_IND_CMD_MODE_BROADCAST;

		reg_gfx_index.bits.sh_index = pMsg->ui32.ShaderArray;
		reg_gfx_index.bits.se_index = pMsg->ui32.ShaderEngine;
		reg_gfx_index.bits.instance_index = pMsg->ui32.HSACU;

		break;

	default:
		return -EINVAL;
	}

	switch (wac_info->operand) {
	case HSA_DBG_WAVEOP_HALT:
		reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_HALT;
		break;

	case HSA_DBG_WAVEOP_RESUME:
		reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_RESUME;
		break;

	case HSA_DBG_WAVEOP_KILL:
		reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_KILL;
		break;

	case HSA_DBG_WAVEOP_DEBUG:
		reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_DEBUG;
		break;

	case HSA_DBG_WAVEOP_TRAP:
		if (wac_info->trapId < MAX_TRAPID) {
			reg_sq_cmd.bits.cmd = SQ_IND_CMD_CMD_TRAP;
			reg_sq_cmd.bits.trap_id = wac_info->trapId;
		} else {
			status = -EINVAL;
		}
		break;

	default:
		status = -EINVAL;
		break;
	}

	if (status == 0) {
		*in_reg_sq_cmd = reg_sq_cmd;
		*in_reg_gfx_index = reg_gfx_index;
	}

	return status;
}

static int dbgdev_wave_control_diq(struct kfd_dbgdev *dbgdev,
					struct dbg_wave_control_info *wac_info)
{

	int status;
	union SQ_CMD_BITS reg_sq_cmd;
	union GRBM_GFX_INDEX_BITS reg_gfx_index;
	struct kfd_mem_obj *mem_obj;
	uint32_t *packet_buff_uint;
	struct pm4__set_config_reg *packets_vec;
	size_t ib_size = sizeof(struct pm4__set_config_reg) * 3;

	reg_sq_cmd.u32All = 0;

	status = dbgdev_wave_control_set_registers(wac_info, &reg_sq_cmd,
							&reg_gfx_index);
	if (status) {
		pr_err("Failed to set wave control registers\n");
		return status;
	}

	/* we do not control the VMID in DIQ, so reset it to a known value */
	reg_sq_cmd.bits.vm_id = 0;

	pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *");

	pr_debug("\t\t mode      is: %u\n", wac_info->mode);
	pr_debug("\t\t operand   is: %u\n", wac_info->operand);
	pr_debug("\t\t trap id   is: %u\n", wac_info->trapId);
	pr_debug("\t\t msg value is: %u\n",
			wac_info->dbgWave_msg.DbgWaveMsg.WaveMsgInfoGen2.Value);
	pr_debug("\t\t vmid      is: N/A\n");

	pr_debug("\t\t chk_vmid  is : %u\n", reg_sq_cmd.bitfields.check_vmid);
	pr_debug("\t\t command   is : %u\n", reg_sq_cmd.bitfields.cmd);
	pr_debug("\t\t queue id  is : %u\n", reg_sq_cmd.bitfields.queue_id);
	pr_debug("\t\t simd id   is : %u\n", reg_sq_cmd.bitfields.simd_id);
	pr_debug("\t\t mode      is : %u\n", reg_sq_cmd.bitfields.mode);
	pr_debug("\t\t vm_id     is : %u\n", reg_sq_cmd.bitfields.vm_id);
	pr_debug("\t\t wave_id   is : %u\n", reg_sq_cmd.bitfields.wave_id);

	pr_debug("\t\t ibw       is : %u\n",
			reg_gfx_index.bitfields.instance_broadcast_writes);
	pr_debug("\t\t ii        is : %u\n",
			reg_gfx_index.bitfields.instance_index);
	pr_debug("\t\t sebw      is : %u\n",
			reg_gfx_index.bitfields.se_broadcast_writes);
	pr_debug("\t\t se_ind    is : %u\n", reg_gfx_index.bitfields.se_index);
	pr_debug("\t\t sh_ind    is : %u\n", reg_gfx_index.bitfields.sh_index);
	pr_debug("\t\t sbw       is : %u\n",
			reg_gfx_index.bitfields.sh_broadcast_writes);

	pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *");

	status = kfd_gtt_sa_allocate(dbgdev->dev, ib_size, &mem_obj);

	if (status != 0) {
		pr_err("Failed to allocate GART memory\n");
		return status;
	}

	packet_buff_uint = mem_obj->cpu_ptr;

	memset(packet_buff_uint, 0, ib_size);

	packets_vec =  (struct pm4__set_config_reg *) packet_buff_uint;
	packets_vec[0].header.count = 1;
	packets_vec[0].header.opcode = IT_SET_UCONFIG_REG;
	packets_vec[0].header.type = PM4_TYPE_3;
	packets_vec[0].bitfields2.reg_offset =
			GRBM_GFX_INDEX / 4 - USERCONFIG_REG_BASE;

	packets_vec[0].bitfields2.insert_vmid = 0;
	packets_vec[0].reg_data[0] = reg_gfx_index.u32All;

	packets_vec[1].header.count = 1;
	packets_vec[1].header.opcode = IT_SET_CONFIG_REG;
	packets_vec[1].header.type = PM4_TYPE_3;
	packets_vec[1].bitfields2.reg_offset = SQ_CMD / 4 - AMD_CONFIG_REG_BASE;

	packets_vec[1].bitfields2.vmid_shift = SQ_CMD_VMID_OFFSET;
	packets_vec[1].bitfields2.insert_vmid = 1;
	packets_vec[1].reg_data[0] = reg_sq_cmd.u32All;

	/* Restore the GRBM_GFX_INDEX register */

	reg_gfx_index.u32All = 0;
	reg_gfx_index.bits.sh_broadcast_writes = 1;
	reg_gfx_index.bits.instance_broadcast_writes = 1;
	reg_gfx_index.bits.se_broadcast_writes = 1;


	packets_vec[2].ordinal1 = packets_vec[0].ordinal1;
	packets_vec[2].bitfields2.reg_offset =
				GRBM_GFX_INDEX / 4 - USERCONFIG_REG_BASE;

	packets_vec[2].bitfields2.insert_vmid = 0;
	packets_vec[2].reg_data[0] = reg_gfx_index.u32All;

	status = dbgdev_diq_submit_ib(
			dbgdev,
			wac_info->process->pasid,
			mem_obj->gpu_addr,
			packet_buff_uint,
			ib_size);

	if (status)
		pr_err("Failed to submit IB to DIQ\n");

	kfd_gtt_sa_free(dbgdev->dev, mem_obj);

	return status;
}

static int dbgdev_wave_control_nodiq(struct kfd_dbgdev *dbgdev,
					struct dbg_wave_control_info *wac_info)
{
	int status;
	union SQ_CMD_BITS reg_sq_cmd;
	union GRBM_GFX_INDEX_BITS reg_gfx_index;
	struct kfd_process_device *pdd;

	reg_sq_cmd.u32All = 0;

	/* taking the VMID for that process on the safe way using PDD */
	pdd = kfd_get_process_device_data(dbgdev->dev, wac_info->process);

	if (!pdd) {
		pr_err("Failed to get pdd for wave control no DIQ\n");
		return -EFAULT;
	}
	status = dbgdev_wave_control_set_registers(wac_info, &reg_sq_cmd,
							&reg_gfx_index);
	if (status) {
		pr_err("Failed to set wave control registers\n");
		return status;
	}

	/* for non DIQ we need to patch the VMID: */

	reg_sq_cmd.bits.vm_id = pdd->qpd.vmid;

	pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *");

	pr_debug("\t\t mode      is: %u\n", wac_info->mode);
	pr_debug("\t\t operand   is: %u\n", wac_info->operand);
	pr_debug("\t\t trap id   is: %u\n", wac_info->trapId);
	pr_debug("\t\t msg value is: %u\n",
			wac_info->dbgWave_msg.DbgWaveMsg.WaveMsgInfoGen2.Value);
	pr_debug("\t\t vmid      is: %u\n", pdd->qpd.vmid);

	pr_debug("\t\t chk_vmid  is : %u\n", reg_sq_cmd.bitfields.check_vmid);
	pr_debug("\t\t command   is : %u\n", reg_sq_cmd.bitfields.cmd);
	pr_debug("\t\t queue id  is : %u\n", reg_sq_cmd.bitfields.queue_id);
	pr_debug("\t\t simd id   is : %u\n", reg_sq_cmd.bitfields.simd_id);
	pr_debug("\t\t mode      is : %u\n", reg_sq_cmd.bitfields.mode);
	pr_debug("\t\t vm_id     is : %u\n", reg_sq_cmd.bitfields.vm_id);
	pr_debug("\t\t wave_id   is : %u\n", reg_sq_cmd.bitfields.wave_id);

	pr_debug("\t\t ibw       is : %u\n",
			reg_gfx_index.bitfields.instance_broadcast_writes);
	pr_debug("\t\t ii        is : %u\n",
			reg_gfx_index.bitfields.instance_index);
	pr_debug("\t\t sebw      is : %u\n",
			reg_gfx_index.bitfields.se_broadcast_writes);
	pr_debug("\t\t se_ind    is : %u\n", reg_gfx_index.bitfields.se_index);
	pr_debug("\t\t sh_ind    is : %u\n", reg_gfx_index.bitfields.sh_index);
	pr_debug("\t\t sbw       is : %u\n",
			reg_gfx_index.bitfields.sh_broadcast_writes);

	pr_debug("\t\t %30s\n", "* * * * * * * * * * * * * * * * * *");

	return dbgdev->dev->kfd2kgd->wave_control_execute(dbgdev->dev->kgd,
							reg_gfx_index.u32All,
							reg_sq_cmd.u32All);
}

int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p)
{
	int status = 0;
	unsigned int vmid;
	uint16_t queried_pasid;
	union SQ_CMD_BITS reg_sq_cmd;
	union GRBM_GFX_INDEX_BITS reg_gfx_index;
	struct kfd_process_device *pdd;
	struct dbg_wave_control_info wac_info;
	int first_vmid_to_scan = dev->vm_info.first_vmid_kfd;
	int last_vmid_to_scan = dev->vm_info.last_vmid_kfd;

	reg_sq_cmd.u32All = 0;
	status = 0;

	wac_info.mode = HSA_DBG_WAVEMODE_BROADCAST_PROCESS;
	wac_info.operand = HSA_DBG_WAVEOP_KILL;

	pr_debug("Killing all process wavefronts\n");

	/* Scan all registers in the range ATC_VMID8_PASID_MAPPING ..
	 * ATC_VMID15_PASID_MAPPING
	 * to check which VMID the current process is mapped to.
	 */

	for (vmid = first_vmid_to_scan; vmid <= last_vmid_to_scan; vmid++) {
		status = dev->kfd2kgd->get_atc_vmid_pasid_mapping_info
				(dev->kgd, vmid, &queried_pasid);

		if (status && queried_pasid == p->pasid) {
			pr_debug("Killing wave fronts of vmid %d and pasid 0x%x\n",
					vmid, p->pasid);
			break;
		}
	}

	if (vmid > last_vmid_to_scan) {
		pr_err("Didn't find vmid for pasid 0x%x\n", p->pasid);
		return -EFAULT;
	}

	/* taking the VMID for that process on the safe way using PDD */
	pdd = kfd_get_process_device_data(dev, p);
	if (!pdd)
		return -EFAULT;

	status = dbgdev_wave_control_set_registers(&wac_info, &reg_sq_cmd,
			&reg_gfx_index);
	if (status != 0)
		return -EINVAL;

	/* for non DIQ we need to patch the VMID: */
	reg_sq_cmd.bits.vm_id = vmid;

	dev->kfd2kgd->wave_control_execute(dev->kgd,
					reg_gfx_index.u32All,
					reg_sq_cmd.u32All);

	return 0;
}

void kfd_dbgdev_init(struct kfd_dbgdev *pdbgdev, struct kfd_dev *pdev,
			enum DBGDEV_TYPE type)
{
	pdbgdev->dev = pdev;
	pdbgdev->kq = NULL;
	pdbgdev->type = type;
	pdbgdev->pqm = NULL;

	switch (type) {
	case DBGDEV_TYPE_NODIQ:
		pdbgdev->dbgdev_register = dbgdev_register_nodiq;
		pdbgdev->dbgdev_unregister = dbgdev_unregister_nodiq;
		pdbgdev->dbgdev_wave_control = dbgdev_wave_control_nodiq;
		pdbgdev->dbgdev_address_watch = dbgdev_address_watch_nodiq;
		break;
	case DBGDEV_TYPE_DIQ:
	default:
		pdbgdev->dbgdev_register = dbgdev_register_diq;
		pdbgdev->dbgdev_unregister = dbgdev_unregister_diq;
		pdbgdev->dbgdev_wave_control =  dbgdev_wave_control_diq;
		pdbgdev->dbgdev_address_watch = dbgdev_address_watch_diq;
		break;
	}

}