change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
..
..
@@ -22,13 +22,80 @@
22
22
  * OTHER DEALINGS IN THE SOFTWARE.
23
23
  *
24
24
  */
25
-#include <drm/drmP.h>
25
+
26
26
 #include "amdgpu.h"
27
27
 #include "amdgpu_gfx.h"
28
+#include "amdgpu_rlc.h"
29
+#include "amdgpu_ras.h"
30
+
31
+/* delay 0.1 second to enable gfx off feature */
32
+#define GFX_OFF_DELAY_ENABLE         msecs_to_jiffies(100)
28
33
 
29
34
 /*
30
- * GPU scratch registers helpers function.
35
+ * GPU GFX IP block helpers function.
31
36
  */
37
+
38
+int amdgpu_gfx_mec_queue_to_bit(struct amdgpu_device *adev, int mec,
39
+				int pipe, int queue)
40
+{
41
+	int bit = 0;
42
+
43
+	bit += mec * adev->gfx.mec.num_pipe_per_mec
44
+		* adev->gfx.mec.num_queue_per_pipe;
45
+	bit += pipe * adev->gfx.mec.num_queue_per_pipe;
46
+	bit += queue;
47
+
48
+	return bit;
49
+}
50
+
51
+void amdgpu_queue_mask_bit_to_mec_queue(struct amdgpu_device *adev, int bit,
52
+				 int *mec, int *pipe, int *queue)
53
+{
54
+	*queue = bit % adev->gfx.mec.num_queue_per_pipe;
55
+	*pipe = (bit / adev->gfx.mec.num_queue_per_pipe)
56
+		% adev->gfx.mec.num_pipe_per_mec;
57
+	*mec = (bit / adev->gfx.mec.num_queue_per_pipe)
58
+	       / adev->gfx.mec.num_pipe_per_mec;
59
+
60
+}
61
+
62
+bool amdgpu_gfx_is_mec_queue_enabled(struct amdgpu_device *adev,
63
+				     int mec, int pipe, int queue)
64
+{
65
+	return test_bit(amdgpu_gfx_mec_queue_to_bit(adev, mec, pipe, queue),
66
+			adev->gfx.mec.queue_bitmap);
67
+}
68
+
69
+int amdgpu_gfx_me_queue_to_bit(struct amdgpu_device *adev,
70
+			       int me, int pipe, int queue)
71
+{
72
+	int bit = 0;
73
+
74
+	bit += me * adev->gfx.me.num_pipe_per_me
75
+		* adev->gfx.me.num_queue_per_pipe;
76
+	bit += pipe * adev->gfx.me.num_queue_per_pipe;
77
+	bit += queue;
78
+
79
+	return bit;
80
+}
81
+
82
+void amdgpu_gfx_bit_to_me_queue(struct amdgpu_device *adev, int bit,
83
+				int *me, int *pipe, int *queue)
84
+{
85
+	*queue = bit % adev->gfx.me.num_queue_per_pipe;
86
+	*pipe = (bit / adev->gfx.me.num_queue_per_pipe)
87
+		% adev->gfx.me.num_pipe_per_me;
88
+	*me = (bit / adev->gfx.me.num_queue_per_pipe)
89
+		/ adev->gfx.me.num_pipe_per_me;
90
+}
91
+
92
+bool amdgpu_gfx_is_me_queue_enabled(struct amdgpu_device *adev,
93
+				    int me, int pipe, int queue)
94
+{
95
+	return test_bit(amdgpu_gfx_me_queue_to_bit(adev, me, pipe, queue),
96
+			adev->gfx.me.queue_bitmap);
97
+}
98
+
32
99
 /**
33
100
  * amdgpu_gfx_scratch_get - Allocate a scratch register
34
101
  *
..
..
@@ -125,42 +192,65 @@
125
192
 	return adev->gfx.mec.num_mec > 1;
126
193
 }
127
194
 
195
+bool amdgpu_gfx_is_high_priority_compute_queue(struct amdgpu_device *adev,
196
+					       int pipe, int queue)
197
+{
198
+	bool multipipe_policy = amdgpu_gfx_is_multipipe_capable(adev);
199
+	int cond;
200
+	/* Policy: alternate between normal and high priority */
201
+	cond = multipipe_policy ? pipe : queue;
202
+
203
+	return ((cond % 2) != 0);
204
+
205
+}
206
+
128
207
 void amdgpu_gfx_compute_queue_acquire(struct amdgpu_device *adev)
129
208
 {
130
-	int i, queue, pipe, mec;
209
+	int i, queue, pipe;
131
210
 	bool multipipe_policy = amdgpu_gfx_is_multipipe_capable(adev);
211
+	int max_queues_per_mec = min(adev->gfx.mec.num_pipe_per_mec *
212
+				     adev->gfx.mec.num_queue_per_pipe,
213
+				     adev->gfx.num_compute_rings);
132
214
 
133
-	/* policy for amdgpu compute queue ownership */
134
-	for (i = 0; i < AMDGPU_MAX_COMPUTE_QUEUES; ++i) {
135
-		queue = i % adev->gfx.mec.num_queue_per_pipe;
136
-		pipe = (i / adev->gfx.mec.num_queue_per_pipe)
137
-			% adev->gfx.mec.num_pipe_per_mec;
138
-		mec = (i / adev->gfx.mec.num_queue_per_pipe)
139
-			/ adev->gfx.mec.num_pipe_per_mec;
215
+	if (multipipe_policy) {
216
+		/* policy: make queues evenly cross all pipes on MEC1 only */
217
+		for (i = 0; i < max_queues_per_mec; i++) {
218
+			pipe = i % adev->gfx.mec.num_pipe_per_mec;
219
+			queue = (i / adev->gfx.mec.num_pipe_per_mec) %
220
+				adev->gfx.mec.num_queue_per_pipe;
140
221
 
141
-		/* we've run out of HW */
142
-		if (mec >= adev->gfx.mec.num_mec)
143
-			break;
144
-
145
-		if (multipipe_policy) {
146
-			/* policy: amdgpu owns the first two queues of the first MEC */
147
-			if (mec == 0 && queue < 2)
148
-				set_bit(i, adev->gfx.mec.queue_bitmap);
149
-		} else {
150
-			/* policy: amdgpu owns all queues in the first pipe */
151
-			if (mec == 0 && pipe == 0)
152
-				set_bit(i, adev->gfx.mec.queue_bitmap);
222
+			set_bit(pipe * adev->gfx.mec.num_queue_per_pipe + queue,
223
+					adev->gfx.mec.queue_bitmap);
153
224
 		}
225
+	} else {
226
+		/* policy: amdgpu owns all queues in the given pipe */
227
+		for (i = 0; i < max_queues_per_mec; ++i)
228
+			set_bit(i, adev->gfx.mec.queue_bitmap);
154
229
 	}
155
230
 
156
-	/* update the number of active compute rings */
157
-	adev->gfx.num_compute_rings =
158
-		bitmap_weight(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_COMPUTE_QUEUES);
231
+	dev_dbg(adev->dev, "mec queue bitmap weight=%d\n", bitmap_weight(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_COMPUTE_QUEUES));
232
+}
159
233
 
160
-	/* If you hit this case and edited the policy, you probably just
161
-	 * need to increase AMDGPU_MAX_COMPUTE_RINGS */
162
-	if (WARN_ON(adev->gfx.num_compute_rings > AMDGPU_MAX_COMPUTE_RINGS))
163
-		adev->gfx.num_compute_rings = AMDGPU_MAX_COMPUTE_RINGS;
234
+void amdgpu_gfx_graphics_queue_acquire(struct amdgpu_device *adev)
235
+{
236
+	int i, queue, me;
237
+
238
+	for (i = 0; i < AMDGPU_MAX_GFX_QUEUES; ++i) {
239
+		queue = i % adev->gfx.me.num_queue_per_pipe;
240
+		me = (i / adev->gfx.me.num_queue_per_pipe)
241
+		      / adev->gfx.me.num_pipe_per_me;
242
+
243
+		if (me >= adev->gfx.me.num_me)
244
+			break;
245
+		/* policy: amdgpu owns the first queue per pipe at this stage
246
+		 * will extend to mulitple queues per pipe later */
247
+		if (me == 0 && queue < 1)
248
+			set_bit(i, adev->gfx.me.queue_bitmap);
249
+	}
250
+
251
+	/* update the number of active graphics rings */
252
+	adev->gfx.num_gfx_rings =
253
+		bitmap_weight(adev->gfx.me.queue_bitmap, AMDGPU_MAX_GFX_QUEUES);
164
254
 }
165
255
 
166
256
 static int amdgpu_gfx_kiq_acquire(struct amdgpu_device *adev,
..
..
@@ -173,11 +263,11 @@
173
263
 		    * adev->gfx.mec.num_pipe_per_mec
174
264
 		    * adev->gfx.mec.num_queue_per_pipe;
175
265
 
176
-	while (queue_bit-- >= 0) {
266
+	while (--queue_bit >= 0) {
177
267
 		if (test_bit(queue_bit, adev->gfx.mec.queue_bitmap))
178
268
 			continue;
179
269
 
180
-		amdgpu_gfx_bit_to_queue(adev, queue_bit, &mec, &pipe, &queue);
270
+		amdgpu_queue_mask_bit_to_mec_queue(adev, queue_bit, &mec, &pipe, &queue);
181
271
 
182
272
 		/*
183
273
 		 * 1. Using pipes 2/3 from MEC 2 seems cause problems.
..
..
@@ -207,33 +297,29 @@
207
297
 
208
298
 	spin_lock_init(&kiq->ring_lock);
209
299
 
210
-	r = amdgpu_device_wb_get(adev, &adev->virt.reg_val_offs);
211
-	if (r)
212
-		return r;
213
-
214
300
 	ring->adev = NULL;
215
301
 	ring->ring_obj = NULL;
216
302
 	ring->use_doorbell = true;
217
-	ring->doorbell_index = AMDGPU_DOORBELL_KIQ;
303
+	ring->doorbell_index = adev->doorbell_index.kiq;
218
304
 
219
305
 	r = amdgpu_gfx_kiq_acquire(adev, ring);
220
306
 	if (r)
221
307
 		return r;
222
308
 
223
309
 	ring->eop_gpu_addr = kiq->eop_gpu_addr;
310
+	ring->no_scheduler = true;
224
311
 	sprintf(ring->name, "kiq_%d.%d.%d", ring->me, ring->pipe, ring->queue);
225
312
 	r = amdgpu_ring_init(adev, ring, 1024,
226
-			     irq, AMDGPU_CP_KIQ_IRQ_DRIVER0);
313
+			     irq, AMDGPU_CP_KIQ_IRQ_DRIVER0,
314
+			     AMDGPU_RING_PRIO_DEFAULT);
227
315
 	if (r)
228
316
 		dev_warn(adev->dev, "(%d) failed to init kiq ring\n", r);
229
317
 
230
318
 	return r;
231
319
 }
232
320
 
233
-void amdgpu_gfx_kiq_free_ring(struct amdgpu_ring *ring,
234
-			      struct amdgpu_irq_src *irq)
321
+void amdgpu_gfx_kiq_free_ring(struct amdgpu_ring *ring)
235
322
 {
236
-	amdgpu_device_wb_free(ring->adev, ring->adev->virt.reg_val_offs);
237
323
 	amdgpu_ring_fini(ring);
238
324
 }
239
325
 
..
..
@@ -270,9 +356,9 @@
270
356
 	return 0;
271
357
 }
272
358
 
273
-/* create MQD for each compute queue */
274
-int amdgpu_gfx_compute_mqd_sw_init(struct amdgpu_device *adev,
275
-				   unsigned mqd_size)
359
+/* create MQD for each compute/gfx queue */
360
+int amdgpu_gfx_mqd_sw_init(struct amdgpu_device *adev,
361
+			   unsigned mqd_size)
276
362
 {
277
363
 	struct amdgpu_ring *ring = NULL;
278
364
 	int r, i;
..
..
@@ -299,6 +385,27 @@
299
385
 				dev_warn(adev->dev, "no memory to create MQD backup for ring %s\n", ring->name);
300
386
 	}
301
387
 
388
+	if (adev->asic_type >= CHIP_NAVI10 && amdgpu_async_gfx_ring) {
389
+		/* create MQD for each KGQ */
390
+		for (i = 0; i < adev->gfx.num_gfx_rings; i++) {
391
+			ring = &adev->gfx.gfx_ring[i];
392
+			if (!ring->mqd_obj) {
393
+				r = amdgpu_bo_create_kernel(adev, mqd_size, PAGE_SIZE,
394
+							    AMDGPU_GEM_DOMAIN_GTT, &ring->mqd_obj,
395
+							    &ring->mqd_gpu_addr, &ring->mqd_ptr);
396
+				if (r) {
397
+					dev_warn(adev->dev, "failed to create ring mqd bo (%d)", r);
398
+					return r;
399
+				}
400
+
401
+				/* prepare MQD backup */
402
+				adev->gfx.me.mqd_backup[i] = kmalloc(mqd_size, GFP_KERNEL);
403
+				if (!adev->gfx.me.mqd_backup[i])
404
+					dev_warn(adev->dev, "no memory to create MQD backup for ring %s\n", ring->name);
405
+			}
406
+		}
407
+	}
408
+
302
409
 	/* create MQD for each KCQ */
303
410
 	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
304
411
 		ring = &adev->gfx.compute_ring[i];
..
..
@@ -307,7 +414,7 @@
307
414
 						    AMDGPU_GEM_DOMAIN_GTT, &ring->mqd_obj,
308
415
 						    &ring->mqd_gpu_addr, &ring->mqd_ptr);
309
416
 			if (r) {
310
-				dev_warn(adev->dev, "failed to create ring mqd ob (%d)", r);
417
+				dev_warn(adev->dev, "failed to create ring mqd bo (%d)", r);
311
418
 				return r;
312
419
 			}
313
420
 
..
..
@@ -321,10 +428,20 @@
321
428
 	return 0;
322
429
 }
323
430
 
324
-void amdgpu_gfx_compute_mqd_sw_fini(struct amdgpu_device *adev)
431
+void amdgpu_gfx_mqd_sw_fini(struct amdgpu_device *adev)
325
432
 {
326
433
 	struct amdgpu_ring *ring = NULL;
327
434
 	int i;
435
+
436
+	if (adev->asic_type >= CHIP_NAVI10 && amdgpu_async_gfx_ring) {
437
+		for (i = 0; i < adev->gfx.num_gfx_rings; i++) {
438
+			ring = &adev->gfx.gfx_ring[i];
439
+			kfree(adev->gfx.me.mqd_backup[i]);
440
+			amdgpu_bo_free_kernel(&ring->mqd_obj,
441
+					      &ring->mqd_gpu_addr,
442
+					      &ring->mqd_ptr);
443
+		}
444
+	}
328
445
 
329
446
 	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
330
447
 		ring = &adev->gfx.compute_ring[i];
..
..
@@ -340,3 +457,368 @@
340
457
 			      &ring->mqd_gpu_addr,
341
458
 			      &ring->mqd_ptr);
342
459
 }
460
+
461
+int amdgpu_gfx_disable_kcq(struct amdgpu_device *adev)
462
+{
463
+	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
464
+	struct amdgpu_ring *kiq_ring = &kiq->ring;
465
+	int i;
466
+
467
+	if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
468
+		return -EINVAL;
469
+
470
+	if (amdgpu_ring_alloc(kiq_ring, kiq->pmf->unmap_queues_size *
471
+					adev->gfx.num_compute_rings))
472
+		return -ENOMEM;
473
+
474
+	for (i = 0; i < adev->gfx.num_compute_rings; i++)
475
+		kiq->pmf->kiq_unmap_queues(kiq_ring, &adev->gfx.compute_ring[i],
476
+					   RESET_QUEUES, 0, 0);
477
+
478
+	return amdgpu_ring_test_helper(kiq_ring);
479
+}
480
+
481
+int amdgpu_queue_mask_bit_to_set_resource_bit(struct amdgpu_device *adev,
482
+					int queue_bit)
483
+{
484
+	int mec, pipe, queue;
485
+	int set_resource_bit = 0;
486
+
487
+	amdgpu_queue_mask_bit_to_mec_queue(adev, queue_bit, &mec, &pipe, &queue);
488
+
489
+	set_resource_bit = mec * 4 * 8 + pipe * 8 + queue;
490
+
491
+	return set_resource_bit;
492
+}
493
+
494
+int amdgpu_gfx_enable_kcq(struct amdgpu_device *adev)
495
+{
496
+	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
497
+	struct amdgpu_ring *kiq_ring = &adev->gfx.kiq.ring;
498
+	uint64_t queue_mask = 0;
499
+	int r, i;
500
+
501
+	if (!kiq->pmf || !kiq->pmf->kiq_map_queues || !kiq->pmf->kiq_set_resources)
502
+		return -EINVAL;
503
+
504
+	for (i = 0; i < AMDGPU_MAX_COMPUTE_QUEUES; ++i) {
505
+		if (!test_bit(i, adev->gfx.mec.queue_bitmap))
506
+			continue;
507
+
508
+		/* This situation may be hit in the future if a new HW
509
+		 * generation exposes more than 64 queues. If so, the
510
+		 * definition of queue_mask needs updating */
511
+		if (WARN_ON(i > (sizeof(queue_mask)*8))) {
512
+			DRM_ERROR("Invalid KCQ enabled: %d\n", i);
513
+			break;
514
+		}
515
+
516
+		queue_mask |= (1ull << amdgpu_queue_mask_bit_to_set_resource_bit(adev, i));
517
+	}
518
+
519
+	DRM_INFO("kiq ring mec %d pipe %d q %d\n", kiq_ring->me, kiq_ring->pipe,
520
+							kiq_ring->queue);
521
+
522
+	r = amdgpu_ring_alloc(kiq_ring, kiq->pmf->map_queues_size *
523
+					adev->gfx.num_compute_rings +
524
+					kiq->pmf->set_resources_size);
525
+	if (r) {
526
+		DRM_ERROR("Failed to lock KIQ (%d).\n", r);
527
+		return r;
528
+	}
529
+
530
+	kiq->pmf->kiq_set_resources(kiq_ring, queue_mask);
531
+	for (i = 0; i < adev->gfx.num_compute_rings; i++)
532
+		kiq->pmf->kiq_map_queues(kiq_ring, &adev->gfx.compute_ring[i]);
533
+
534
+	r = amdgpu_ring_test_helper(kiq_ring);
535
+	if (r)
536
+		DRM_ERROR("KCQ enable failed\n");
537
+
538
+	return r;
539
+}
540
+
541
+/* amdgpu_gfx_off_ctrl - Handle gfx off feature enable/disable
542
+ *
543
+ * @adev: amdgpu_device pointer
544
+ * @bool enable true: enable gfx off feature, false: disable gfx off feature
545
+ *
546
+ * 1. gfx off feature will be enabled by gfx ip after gfx cg gp enabled.
547
+ * 2. other client can send request to disable gfx off feature, the request should be honored.
548
+ * 3. other client can cancel their request of disable gfx off feature
549
+ * 4. other client should not send request to enable gfx off feature before disable gfx off feature.
550
+ */
551
+
552
+void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable)
553
+{
554
+	if (!(adev->pm.pp_feature & PP_GFXOFF_MASK))
555
+		return;
556
+
557
+	mutex_lock(&adev->gfx.gfx_off_mutex);
558
+
559
+	if (enable) {
560
+		/* If the count is already 0, it means there's an imbalance bug somewhere.
561
+		 * Note that the bug may be in a different caller than the one which triggers the
562
+		 * WARN_ON_ONCE.
563
+		 */
564
+		if (WARN_ON_ONCE(adev->gfx.gfx_off_req_count == 0))
565
+			goto unlock;
566
+
567
+		adev->gfx.gfx_off_req_count--;
568
+
569
+		if (adev->gfx.gfx_off_req_count == 0 && !adev->gfx.gfx_off_state)
570
+			schedule_delayed_work(&adev->gfx.gfx_off_delay_work, GFX_OFF_DELAY_ENABLE);
571
+	} else {
572
+		if (adev->gfx.gfx_off_req_count == 0) {
573
+			cancel_delayed_work_sync(&adev->gfx.gfx_off_delay_work);
574
+
575
+			if (adev->gfx.gfx_off_state &&
576
+			    !amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, false)) {
577
+				adev->gfx.gfx_off_state = false;
578
+
579
+				if (adev->gfx.funcs->init_spm_golden) {
580
+					dev_dbg(adev->dev,
581
+						"GFXOFF is disabled, re-init SPM golden settings\n");
582
+					amdgpu_gfx_init_spm_golden(adev);
583
+				}
584
+			}
585
+		}
586
+
587
+		adev->gfx.gfx_off_req_count++;
588
+	}
589
+
590
+unlock:
591
+	mutex_unlock(&adev->gfx.gfx_off_mutex);
592
+}
593
+
594
+int amdgpu_get_gfx_off_status(struct amdgpu_device *adev, uint32_t *value)
595
+{
596
+
597
+	int r = 0;
598
+
599
+	mutex_lock(&adev->gfx.gfx_off_mutex);
600
+
601
+	r = smu_get_status_gfxoff(adev, value);
602
+
603
+	mutex_unlock(&adev->gfx.gfx_off_mutex);
604
+
605
+	return r;
606
+}
607
+
608
+int amdgpu_gfx_ras_late_init(struct amdgpu_device *adev)
609
+{
610
+	int r;
611
+	struct ras_fs_if fs_info = {
612
+		.sysfs_name = "gfx_err_count",
613
+	};
614
+	struct ras_ih_if ih_info = {
615
+		.cb = amdgpu_gfx_process_ras_data_cb,
616
+	};
617
+
618
+	if (!adev->gfx.ras_if) {
619
+		adev->gfx.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
620
+		if (!adev->gfx.ras_if)
621
+			return -ENOMEM;
622
+		adev->gfx.ras_if->block = AMDGPU_RAS_BLOCK__GFX;
623
+		adev->gfx.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
624
+		adev->gfx.ras_if->sub_block_index = 0;
625
+		strcpy(adev->gfx.ras_if->name, "gfx");
626
+	}
627
+	fs_info.head = ih_info.head = *adev->gfx.ras_if;
628
+
629
+	r = amdgpu_ras_late_init(adev, adev->gfx.ras_if,
630
+				 &fs_info, &ih_info);
631
+	if (r)
632
+		goto free;
633
+
634
+	if (amdgpu_ras_is_supported(adev, adev->gfx.ras_if->block)) {
635
+		r = amdgpu_irq_get(adev, &adev->gfx.cp_ecc_error_irq, 0);
636
+		if (r)
637
+			goto late_fini;
638
+	} else {
639
+		/* free gfx ras_if if ras is not supported */
640
+		r = 0;
641
+		goto free;
642
+	}
643
+
644
+	return 0;
645
+late_fini:
646
+	amdgpu_ras_late_fini(adev, adev->gfx.ras_if, &ih_info);
647
+free:
648
+	kfree(adev->gfx.ras_if);
649
+	adev->gfx.ras_if = NULL;
650
+	return r;
651
+}
652
+
653
+void amdgpu_gfx_ras_fini(struct amdgpu_device *adev)
654
+{
655
+	if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX) &&
656
+			adev->gfx.ras_if) {
657
+		struct ras_common_if *ras_if = adev->gfx.ras_if;
658
+		struct ras_ih_if ih_info = {
659
+			.head = *ras_if,
660
+			.cb = amdgpu_gfx_process_ras_data_cb,
661
+		};
662
+
663
+		amdgpu_ras_late_fini(adev, ras_if, &ih_info);
664
+		kfree(ras_if);
665
+	}
666
+}
667
+
668
+int amdgpu_gfx_process_ras_data_cb(struct amdgpu_device *adev,
669
+		void *err_data,
670
+		struct amdgpu_iv_entry *entry)
671
+{
672
+	/* TODO ue will trigger an interrupt.
673
+	 *
674
+	 * When “Full RAS” is enabled, the per-IP interrupt sources should
675
+	 * be disabled and the driver should only look for the aggregated
676
+	 * interrupt via sync flood
677
+	 */
678
+	if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX)) {
679
+		kgd2kfd_set_sram_ecc_flag(adev->kfd.dev);
680
+		if (adev->gfx.funcs->query_ras_error_count)
681
+			adev->gfx.funcs->query_ras_error_count(adev, err_data);
682
+		amdgpu_ras_reset_gpu(adev);
683
+	}
684
+	return AMDGPU_RAS_SUCCESS;
685
+}
686
+
687
+int amdgpu_gfx_cp_ecc_error_irq(struct amdgpu_device *adev,
688
+				  struct amdgpu_irq_src *source,
689
+				  struct amdgpu_iv_entry *entry)
690
+{
691
+	struct ras_common_if *ras_if = adev->gfx.ras_if;
692
+	struct ras_dispatch_if ih_data = {
693
+		.entry = entry,
694
+	};
695
+
696
+	if (!ras_if)
697
+		return 0;
698
+
699
+	ih_data.head = *ras_if;
700
+
701
+	DRM_ERROR("CP ECC ERROR IRQ\n");
702
+	amdgpu_ras_interrupt_dispatch(adev, &ih_data);
703
+	return 0;
704
+}
705
+
706
+uint32_t amdgpu_kiq_rreg(struct amdgpu_device *adev, uint32_t reg)
707
+{
708
+	signed long r, cnt = 0;
709
+	unsigned long flags;
710
+	uint32_t seq, reg_val_offs = 0, value = 0;
711
+	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
712
+	struct amdgpu_ring *ring = &kiq->ring;
713
+
714
+	if (adev->in_pci_err_recovery)
715
+		return 0;
716
+
717
+	BUG_ON(!ring->funcs->emit_rreg);
718
+
719
+	spin_lock_irqsave(&kiq->ring_lock, flags);
720
+	if (amdgpu_device_wb_get(adev, &reg_val_offs)) {
721
+		pr_err("critical bug! too many kiq readers\n");
722
+		goto failed_unlock;
723
+	}
724
+	amdgpu_ring_alloc(ring, 32);
725
+	amdgpu_ring_emit_rreg(ring, reg, reg_val_offs);
726
+	r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT);
727
+	if (r)
728
+		goto failed_undo;
729
+
730
+	amdgpu_ring_commit(ring);
731
+	spin_unlock_irqrestore(&kiq->ring_lock, flags);
732
+
733
+	r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
734
+
735
+	/* don't wait anymore for gpu reset case because this way may
736
+	 * block gpu_recover() routine forever, e.g. this virt_kiq_rreg
737
+	 * is triggered in TTM and ttm_bo_lock_delayed_workqueue() will
738
+	 * never return if we keep waiting in virt_kiq_rreg, which cause
739
+	 * gpu_recover() hang there.
740
+	 *
741
+	 * also don't wait anymore for IRQ context
742
+	 * */
743
+	if (r < 1 && (amdgpu_in_reset(adev) || in_interrupt()))
744
+		goto failed_kiq_read;
745
+
746
+	might_sleep();
747
+	while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
748
+		msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
749
+		r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
750
+	}
751
+
752
+	if (cnt > MAX_KIQ_REG_TRY)
753
+		goto failed_kiq_read;
754
+
755
+	mb();
756
+	value = adev->wb.wb[reg_val_offs];
757
+	amdgpu_device_wb_free(adev, reg_val_offs);
758
+	return value;
759
+
760
+failed_undo:
761
+	amdgpu_ring_undo(ring);
762
+failed_unlock:
763
+	spin_unlock_irqrestore(&kiq->ring_lock, flags);
764
+failed_kiq_read:
765
+	if (reg_val_offs)
766
+		amdgpu_device_wb_free(adev, reg_val_offs);
767
+	dev_err(adev->dev, "failed to read reg:%x\n", reg);
768
+	return ~0;
769
+}
770
+
771
+void amdgpu_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
772
+{
773
+	signed long r, cnt = 0;
774
+	unsigned long flags;
775
+	uint32_t seq;
776
+	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
777
+	struct amdgpu_ring *ring = &kiq->ring;
778
+
779
+	BUG_ON(!ring->funcs->emit_wreg);
780
+
781
+	if (adev->in_pci_err_recovery)
782
+		return;
783
+
784
+	spin_lock_irqsave(&kiq->ring_lock, flags);
785
+	amdgpu_ring_alloc(ring, 32);
786
+	amdgpu_ring_emit_wreg(ring, reg, v);
787
+	r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT);
788
+	if (r)
789
+		goto failed_undo;
790
+
791
+	amdgpu_ring_commit(ring);
792
+	spin_unlock_irqrestore(&kiq->ring_lock, flags);
793
+
794
+	r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
795
+
796
+	/* don't wait anymore for gpu reset case because this way may
797
+	 * block gpu_recover() routine forever, e.g. this virt_kiq_rreg
798
+	 * is triggered in TTM and ttm_bo_lock_delayed_workqueue() will
799
+	 * never return if we keep waiting in virt_kiq_rreg, which cause
800
+	 * gpu_recover() hang there.
801
+	 *
802
+	 * also don't wait anymore for IRQ context
803
+	 * */
804
+	if (r < 1 && (amdgpu_in_reset(adev) || in_interrupt()))
805
+		goto failed_kiq_write;
806
+
807
+	might_sleep();
808
+	while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
809
+
810
+		msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
811
+		r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);
812
+	}
813
+
814
+	if (cnt > MAX_KIQ_REG_TRY)
815
+		goto failed_kiq_write;
816
+
817
+	return;
818
+
819
+failed_undo:
820
+	amdgpu_ring_undo(ring);
821
+	spin_unlock_irqrestore(&kiq->ring_lock, flags);
822
+failed_kiq_write:
823
+	dev_err(adev->dev, "failed to write reg:%x\n", reg);
824
+}