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5078 serge 1
/*
2
 * Copyright 2009 VMware, 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
 * Authors: Michel Dänzer
23
 */
24
#include 
25
#include 
26
#include "radeon_reg.h"
27
#include "radeon.h"
28
 
29
#define RADEON_TEST_COPY_BLIT 1
30
#define RADEON_TEST_COPY_DMA  0
31
 
32
 
33
/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
34
static void radeon_do_test_moves(struct radeon_device *rdev, int flag)
35
{
36
	struct radeon_bo *vram_obj = NULL;
37
	struct radeon_bo **gtt_obj = NULL;
38
	uint64_t gtt_addr, vram_addr;
39
	unsigned n, size;
40
	int i, r, ring;
41
 
42
	switch (flag) {
43
	case RADEON_TEST_COPY_DMA:
44
		ring = radeon_copy_dma_ring_index(rdev);
45
		break;
46
	case RADEON_TEST_COPY_BLIT:
47
		ring = radeon_copy_blit_ring_index(rdev);
48
		break;
49
	default:
50
		DRM_ERROR("Unknown copy method\n");
51
		return;
52
	}
53
 
54
	size = 1024 * 1024;
55
 
56
	/* Number of tests =
57
	 * (Total GTT - IB pool - writeback page - ring buffers) / test size
58
	 */
59
	n = rdev->mc.gtt_size - rdev->gart_pin_size;
60
	n /= size;
61
 
62
	gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
63
	if (!gtt_obj) {
64
		DRM_ERROR("Failed to allocate %d pointers\n", n);
65
		r = 1;
66
		goto out_cleanup;
67
	}
68
 
69
	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
70
			     0, NULL, &vram_obj);
71
	if (r) {
72
		DRM_ERROR("Failed to create VRAM object\n");
73
		goto out_cleanup;
74
	}
75
	r = radeon_bo_reserve(vram_obj, false);
76
	if (unlikely(r != 0))
77
		goto out_unref;
78
	r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
79
	if (r) {
80
		DRM_ERROR("Failed to pin VRAM object\n");
81
		goto out_unres;
82
	}
83
	for (i = 0; i < n; i++) {
84
		void *gtt_map, *vram_map;
85
		void **gtt_start, **gtt_end;
86
		void **vram_start, **vram_end;
87
		struct radeon_fence *fence = NULL;
88
 
89
		r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
90
				     RADEON_GEM_DOMAIN_GTT, 0, NULL, gtt_obj + i);
91
		if (r) {
92
			DRM_ERROR("Failed to create GTT object %d\n", i);
93
			goto out_lclean;
94
		}
95
 
96
		r = radeon_bo_reserve(gtt_obj[i], false);
97
		if (unlikely(r != 0))
98
			goto out_lclean_unref;
99
		r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, >t_addr);
100
		if (r) {
101
			DRM_ERROR("Failed to pin GTT object %d\n", i);
102
			goto out_lclean_unres;
103
		}
104
 
105
		r = radeon_bo_kmap(gtt_obj[i], >t_map);
106
		if (r) {
107
			DRM_ERROR("Failed to map GTT object %d\n", i);
108
			goto out_lclean_unpin;
109
		}
110
 
111
		for (gtt_start = gtt_map, gtt_end = gtt_map + size;
112
		     gtt_start < gtt_end;
113
		     gtt_start++)
114
			*gtt_start = gtt_start;
115
 
116
		radeon_bo_kunmap(gtt_obj[i]);
117
 
118
		if (ring == R600_RING_TYPE_DMA_INDEX)
119
			r = radeon_copy_dma(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
120
		else
121
			r = radeon_copy_blit(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
122
		if (r) {
123
			DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
124
			goto out_lclean_unpin;
125
		}
126
 
127
		r = radeon_fence_wait(fence, false);
128
		if (r) {
129
			DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
130
			goto out_lclean_unpin;
131
		}
132
 
133
		radeon_fence_unref(&fence);
134
 
135
		r = radeon_bo_kmap(vram_obj, &vram_map);
136
		if (r) {
137
			DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
138
			goto out_lclean_unpin;
139
		}
140
 
141
		for (gtt_start = gtt_map, gtt_end = gtt_map + size,
142
		     vram_start = vram_map, vram_end = vram_map + size;
143
		     vram_start < vram_end;
144
		     gtt_start++, vram_start++) {
145
			if (*vram_start != gtt_start) {
146
				DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
147
					  "expected 0x%p (GTT/VRAM offset "
148
					  "0x%16llx/0x%16llx)\n",
149
					  i, *vram_start, gtt_start,
150
					  (unsigned long long)
151
					  (gtt_addr - rdev->mc.gtt_start +
152
					   (void*)gtt_start - gtt_map),
153
					  (unsigned long long)
154
					  (vram_addr - rdev->mc.vram_start +
155
					   (void*)gtt_start - gtt_map));
156
				radeon_bo_kunmap(vram_obj);
157
				goto out_lclean_unpin;
158
			}
159
			*vram_start = vram_start;
160
		}
161
 
162
		radeon_bo_kunmap(vram_obj);
163
 
164
		if (ring == R600_RING_TYPE_DMA_INDEX)
165
			r = radeon_copy_dma(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
166
		else
167
			r = radeon_copy_blit(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
168
		if (r) {
169
			DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
170
			goto out_lclean_unpin;
171
		}
172
 
173
		r = radeon_fence_wait(fence, false);
174
		if (r) {
175
			DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
176
			goto out_lclean_unpin;
177
		}
178
 
179
		radeon_fence_unref(&fence);
180
 
181
		r = radeon_bo_kmap(gtt_obj[i], >t_map);
182
		if (r) {
183
			DRM_ERROR("Failed to map GTT object after copy %d\n", i);
184
			goto out_lclean_unpin;
185
		}
186
 
187
		for (gtt_start = gtt_map, gtt_end = gtt_map + size,
188
		     vram_start = vram_map, vram_end = vram_map + size;
189
		     gtt_start < gtt_end;
190
		     gtt_start++, vram_start++) {
191
			if (*gtt_start != vram_start) {
192
				DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
193
					  "expected 0x%p (VRAM/GTT offset "
194
					  "0x%16llx/0x%16llx)\n",
195
					  i, *gtt_start, vram_start,
196
					  (unsigned long long)
197
					  (vram_addr - rdev->mc.vram_start +
198
					   (void*)vram_start - vram_map),
199
					  (unsigned long long)
200
					  (gtt_addr - rdev->mc.gtt_start +
201
					   (void*)vram_start - vram_map));
202
				radeon_bo_kunmap(gtt_obj[i]);
203
				goto out_lclean_unpin;
204
			}
205
		}
206
 
207
		radeon_bo_kunmap(gtt_obj[i]);
208
 
209
		DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
210
			 gtt_addr - rdev->mc.gtt_start);
211
		continue;
212
 
213
out_lclean_unpin:
214
		radeon_bo_unpin(gtt_obj[i]);
215
out_lclean_unres:
216
		radeon_bo_unreserve(gtt_obj[i]);
217
out_lclean_unref:
218
		radeon_bo_unref(>t_obj[i]);
219
out_lclean:
220
		for (--i; i >= 0; --i) {
221
			radeon_bo_unpin(gtt_obj[i]);
222
			radeon_bo_unreserve(gtt_obj[i]);
223
			radeon_bo_unref(>t_obj[i]);
224
		}
225
		if (fence)
226
			radeon_fence_unref(&fence);
227
		break;
228
	}
229
 
230
	radeon_bo_unpin(vram_obj);
231
out_unres:
232
	radeon_bo_unreserve(vram_obj);
233
out_unref:
234
	radeon_bo_unref(&vram_obj);
235
out_cleanup:
236
	kfree(gtt_obj);
237
	if (r) {
238
		printk(KERN_WARNING "Error while testing BO move.\n");
239
	}
240
}
241
 
242
void radeon_test_moves(struct radeon_device *rdev)
243
{
244
	if (rdev->asic->copy.dma)
245
		radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA);
246
	if (rdev->asic->copy.blit)
247
		radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT);
248
}
249
 
250
static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
251
					     struct radeon_ring *ring,
252
					     struct radeon_fence **fence)
253
{
254
	uint32_t handle = ring->idx ^ 0xdeafbeef;
255
	int r;
256
 
257
	if (ring->idx == R600_RING_TYPE_UVD_INDEX) {
258
#if 0
259
		r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL);
260
		if (r) {
261
			DRM_ERROR("Failed to get dummy create msg\n");
262
			return r;
263
		}
264
 
265
		r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence);
266
		if (r) {
267
			DRM_ERROR("Failed to get dummy destroy msg\n");
268
			return r;
269
		}
270
#endif
271
	} else if (ring->idx == TN_RING_TYPE_VCE1_INDEX ||
272
		   ring->idx == TN_RING_TYPE_VCE2_INDEX) {
273
#if 0
274
		r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL);
275
		if (r) {
276
			DRM_ERROR("Failed to get dummy create msg\n");
277
			return r;
278
		}
279
 
280
		r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence);
281
		if (r) {
282
			DRM_ERROR("Failed to get dummy destroy msg\n");
283
			return r;
284
		}
285
#endif
286
	} else {
287
		r = radeon_ring_lock(rdev, ring, 64);
288
		if (r) {
289
			DRM_ERROR("Failed to lock ring A %d\n", ring->idx);
290
			return r;
291
		}
292
		radeon_fence_emit(rdev, fence, ring->idx);
293
		radeon_ring_unlock_commit(rdev, ring, false);
294
	}
295
	return 0;
296
}
297
 
298
void radeon_test_ring_sync(struct radeon_device *rdev,
299
			   struct radeon_ring *ringA,
300
			   struct radeon_ring *ringB)
301
{
302
	struct radeon_fence *fence1 = NULL, *fence2 = NULL;
303
	struct radeon_semaphore *semaphore = NULL;
304
	int r;
305
 
306
	r = radeon_semaphore_create(rdev, &semaphore);
307
	if (r) {
308
		DRM_ERROR("Failed to create semaphore\n");
309
		goto out_cleanup;
310
	}
311
 
312
	r = radeon_ring_lock(rdev, ringA, 64);
313
	if (r) {
314
		DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
315
		goto out_cleanup;
316
	}
317
	radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
318
	radeon_ring_unlock_commit(rdev, ringA, false);
319
 
320
	r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
321
	if (r)
322
		goto out_cleanup;
323
 
324
	r = radeon_ring_lock(rdev, ringA, 64);
325
	if (r) {
326
		DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
327
		goto out_cleanup;
328
	}
329
	radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
330
	radeon_ring_unlock_commit(rdev, ringA, false);
331
 
332
	r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
333
	if (r)
334
		goto out_cleanup;
335
 
336
	mdelay(1000);
337
 
338
	if (radeon_fence_signaled(fence1)) {
339
		DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
340
		goto out_cleanup;
341
	}
342
 
343
	r = radeon_ring_lock(rdev, ringB, 64);
344
	if (r) {
345
		DRM_ERROR("Failed to lock ring B %p\n", ringB);
346
		goto out_cleanup;
347
	}
348
	radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
349
	radeon_ring_unlock_commit(rdev, ringB, false);
350
 
351
	r = radeon_fence_wait(fence1, false);
352
	if (r) {
353
		DRM_ERROR("Failed to wait for sync fence 1\n");
354
		goto out_cleanup;
355
	}
356
 
357
	mdelay(1000);
358
 
359
	if (radeon_fence_signaled(fence2)) {
360
		DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
361
		goto out_cleanup;
362
	}
363
 
364
	r = radeon_ring_lock(rdev, ringB, 64);
365
	if (r) {
366
		DRM_ERROR("Failed to lock ring B %p\n", ringB);
367
		goto out_cleanup;
368
	}
369
	radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
370
	radeon_ring_unlock_commit(rdev, ringB, false);
371
 
372
	r = radeon_fence_wait(fence2, false);
373
	if (r) {
374
		DRM_ERROR("Failed to wait for sync fence 1\n");
375
		goto out_cleanup;
376
	}
377
 
378
out_cleanup:
379
	radeon_semaphore_free(rdev, &semaphore, NULL);
380
 
381
	if (fence1)
382
		radeon_fence_unref(&fence1);
383
 
384
	if (fence2)
385
		radeon_fence_unref(&fence2);
386
 
387
	if (r)
388
		printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
389
}
390
 
391
static void radeon_test_ring_sync2(struct radeon_device *rdev,
392
			    struct radeon_ring *ringA,
393
			    struct radeon_ring *ringB,
394
			    struct radeon_ring *ringC)
395
{
396
	struct radeon_fence *fenceA = NULL, *fenceB = NULL;
397
	struct radeon_semaphore *semaphore = NULL;
398
	bool sigA, sigB;
399
	int i, r;
400
 
401
	r = radeon_semaphore_create(rdev, &semaphore);
402
	if (r) {
403
		DRM_ERROR("Failed to create semaphore\n");
404
		goto out_cleanup;
405
	}
406
 
407
	r = radeon_ring_lock(rdev, ringA, 64);
408
	if (r) {
409
		DRM_ERROR("Failed to lock ring A %d\n", ringA->idx);
410
		goto out_cleanup;
411
	}
412
	radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
413
	radeon_ring_unlock_commit(rdev, ringA, false);
414
 
415
	r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
416
	if (r)
417
		goto out_cleanup;
418
 
419
	r = radeon_ring_lock(rdev, ringB, 64);
420
	if (r) {
421
		DRM_ERROR("Failed to lock ring B %d\n", ringB->idx);
422
		goto out_cleanup;
423
	}
424
	radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
425
	radeon_ring_unlock_commit(rdev, ringB, false);
426
	r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
427
	if (r)
428
		goto out_cleanup;
429
 
430
	mdelay(1000);
431
 
432
	if (radeon_fence_signaled(fenceA)) {
433
		DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
434
		goto out_cleanup;
435
	}
436
	if (radeon_fence_signaled(fenceB)) {
437
		DRM_ERROR("Fence B signaled without waiting for semaphore.\n");
438
		goto out_cleanup;
439
	}
440
 
441
	r = radeon_ring_lock(rdev, ringC, 64);
442
	if (r) {
443
		DRM_ERROR("Failed to lock ring B %p\n", ringC);
444
		goto out_cleanup;
445
	}
446
	radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
447
	radeon_ring_unlock_commit(rdev, ringC, false);
448
 
449
	for (i = 0; i < 30; ++i) {
450
		mdelay(100);
451
		sigA = radeon_fence_signaled(fenceA);
452
		sigB = radeon_fence_signaled(fenceB);
453
		if (sigA || sigB)
454
			break;
455
	}
456
 
457
	if (!sigA && !sigB) {
458
		DRM_ERROR("Neither fence A nor B has been signaled\n");
459
		goto out_cleanup;
460
	} else if (sigA && sigB) {
461
		DRM_ERROR("Both fence A and B has been signaled\n");
462
		goto out_cleanup;
463
	}
464
 
465
	DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
466
 
467
	r = radeon_ring_lock(rdev, ringC, 64);
468
	if (r) {
469
		DRM_ERROR("Failed to lock ring B %p\n", ringC);
470
		goto out_cleanup;
471
	}
472
	radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
473
	radeon_ring_unlock_commit(rdev, ringC, false);
474
 
475
	mdelay(1000);
476
 
477
	r = radeon_fence_wait(fenceA, false);
478
	if (r) {
479
		DRM_ERROR("Failed to wait for sync fence A\n");
480
		goto out_cleanup;
481
	}
482
	r = radeon_fence_wait(fenceB, false);
483
	if (r) {
484
		DRM_ERROR("Failed to wait for sync fence B\n");
485
		goto out_cleanup;
486
	}
487
 
488
out_cleanup:
489
	radeon_semaphore_free(rdev, &semaphore, NULL);
490
 
491
	if (fenceA)
492
		radeon_fence_unref(&fenceA);
493
 
494
	if (fenceB)
495
		radeon_fence_unref(&fenceB);
496
 
497
	if (r)
498
		printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
499
}
500
 
501
static bool radeon_test_sync_possible(struct radeon_ring *ringA,
502
				      struct radeon_ring *ringB)
503
{
504
	if (ringA->idx == TN_RING_TYPE_VCE2_INDEX &&
505
	    ringB->idx == TN_RING_TYPE_VCE1_INDEX)
506
		return false;
507
 
508
	return true;
509
}
510
 
511
void radeon_test_syncing(struct radeon_device *rdev)
512
{
513
	int i, j, k;
514
 
515
	for (i = 1; i < RADEON_NUM_RINGS; ++i) {
516
		struct radeon_ring *ringA = &rdev->ring[i];
517
		if (!ringA->ready)
518
			continue;
519
 
520
		for (j = 0; j < i; ++j) {
521
			struct radeon_ring *ringB = &rdev->ring[j];
522
			if (!ringB->ready)
523
				continue;
524
 
525
			if (!radeon_test_sync_possible(ringA, ringB))
526
				continue;
527
 
528
			DRM_INFO("Testing syncing between rings %d and %d...\n", i, j);
529
			radeon_test_ring_sync(rdev, ringA, ringB);
530
 
531
			DRM_INFO("Testing syncing between rings %d and %d...\n", j, i);
532
			radeon_test_ring_sync(rdev, ringB, ringA);
533
 
534
			for (k = 0; k < j; ++k) {
535
				struct radeon_ring *ringC = &rdev->ring[k];
536
				if (!ringC->ready)
537
					continue;
538
 
539
				if (!radeon_test_sync_possible(ringA, ringC))
540
					continue;
541
 
542
				if (!radeon_test_sync_possible(ringB, ringC))
543
					continue;
544
 
545
				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k);
546
				radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
547
 
548
				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j);
549
				radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
550
 
551
				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k);
552
				radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
553
 
554
				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i);
555
				radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
556
 
557
				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j);
558
				radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
559
 
560
				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i);
561
				radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
562
			}
563
		}
564
	}
565
}