static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
				    uint64_t saddr, uint64_t daddr,
				    int flag, int n)
{
	unsigned long start_jiffies;
	unsigned long end_jiffies;
	struct radeon_fence *fence = NULL;
	int i, r;

	start_jiffies = jiffies;
	for (i = 0; i < n; i++) {
		switch (flag) {
		case RADEON_BENCHMARK_COPY_DMA:
			r = radeon_fence_create(rdev, &fence, radeon_copy_dma_ring_index(rdev));
			if (r)
				return r;
			r = radeon_copy_dma(rdev, saddr, daddr,
					    size / RADEON_GPU_PAGE_SIZE,
					    fence);
			break;
		case RADEON_BENCHMARK_COPY_BLIT:
			r = radeon_fence_create(rdev, &fence, radeon_copy_blit_ring_index(rdev));
			if (r)
				return r;
			r = radeon_copy_blit(rdev, saddr, daddr,
					     size / RADEON_GPU_PAGE_SIZE,
					     fence);
			break;
		default:
			DRM_ERROR("Unknown copy method\n");
			r = -EINVAL;
		}
		if (r)
			goto exit_do_move;
		r = radeon_fence_wait(fence, false);
		if (r)
			goto exit_do_move;
		radeon_fence_unref(&fence);
	}
	end_jiffies = jiffies;
	r = jiffies_to_msecs(end_jiffies - start_jiffies);

exit_do_move:
	if (fence)
		radeon_fence_unref(&fence);
	return r;
}
/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
static void radeon_do_test_moves(struct radeon_device *rdev, int flag)
{
	struct radeon_bo *vram_obj = NULL;
	struct radeon_bo **gtt_obj = NULL;
	uint64_t gtt_addr, vram_addr;
	unsigned n, size;
	int i, r, ring;

	switch (flag) {
	case RADEON_TEST_COPY_DMA:
		ring = radeon_copy_dma_ring_index(rdev);
		break;
	case RADEON_TEST_COPY_BLIT:
		ring = radeon_copy_blit_ring_index(rdev);
		break;
	default:
		DRM_ERROR("Unknown copy method\n");
		return;
	}

	size = 1024 * 1024;

	/* Number of tests =
	 * (Total GTT - IB pool - writeback page - ring buffers) / test size
	 */
	n = rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024;
	for (i = 0; i < RADEON_NUM_RINGS; ++i)
		n -= rdev->ring[i].ring_size;
	if (rdev->wb.wb_obj)
		n -= RADEON_GPU_PAGE_SIZE;
	if (rdev->ih.ring_obj)
		n -= rdev->ih.ring_size;
	n /= size;

	gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
	if (!gtt_obj) {
		DRM_ERROR("Failed to allocate %d pointers\n", n);
		r = 1;
		goto out_cleanup;
	}

	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
			     NULL, &vram_obj);
	if (r) {
		DRM_ERROR("Failed to create VRAM object\n");
		goto out_cleanup;
	}
	r = radeon_bo_reserve(vram_obj, false);
	if (unlikely(r != 0))
		goto out_unref;
	r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
	if (r) {
		DRM_ERROR("Failed to pin VRAM object\n");
		goto out_unres;
	}
	for (i = 0; i < n; i++) {
		void *gtt_map, *vram_map;
		void **gtt_start, **gtt_end;
		void **vram_start, **vram_end;
		struct radeon_fence *fence = NULL;

		r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
				     RADEON_GEM_DOMAIN_GTT, NULL, gtt_obj + i);
		if (r) {
			DRM_ERROR("Failed to create GTT object %d\n", i);
			goto out_lclean;
		}

		r = radeon_bo_reserve(gtt_obj[i], false);
		if (unlikely(r != 0))
			goto out_lclean_unref;
		r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, &gtt_addr);
		if (r) {
			DRM_ERROR("Failed to pin GTT object %d\n", i);
			goto out_lclean_unres;
		}

		r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
		if (r) {
			DRM_ERROR("Failed to map GTT object %d\n", i);
			goto out_lclean_unpin;
		}

		for (gtt_start = gtt_map, gtt_end = gtt_map + size;
		     gtt_start < gtt_end;
		     gtt_start++)
			*gtt_start = gtt_start;

		radeon_bo_kunmap(gtt_obj[i]);

		if (ring == R600_RING_TYPE_DMA_INDEX)
			r = radeon_copy_dma(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
		else
			r = radeon_copy_blit(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
		if (r) {
			DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
			goto out_lclean_unpin;
		}

		r = radeon_fence_wait(fence, false);
		if (r) {
			DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
			goto out_lclean_unpin;
		}

		radeon_fence_unref(&fence);

		r = radeon_bo_kmap(vram_obj, &vram_map);
		if (r) {
			DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
			goto out_lclean_unpin;
		}

		for (gtt_start = gtt_map, gtt_end = gtt_map + size,
		     vram_start = vram_map, vram_end = vram_map + size;
		     vram_start < vram_end;
		     gtt_start++, vram_start++) {
			if (*vram_start != gtt_start) {
				DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
					  "expected 0x%p (GTT/VRAM offset "
					  "0x%16llx/0x%16llx)\n",
					  i, *vram_start, gtt_start,
					  (unsigned long long)
					  (gtt_addr - rdev->mc.gtt_start +
					   (void*)gtt_start - gtt_map),
					  (unsigned long long)
					  (vram_addr - rdev->mc.vram_start +
					   (void*)gtt_start - gtt_map));
				radeon_bo_kunmap(vram_obj);
				goto out_lclean_unpin;
			}
			*vram_start = vram_start;
		}

		radeon_bo_kunmap(vram_obj);

		if (ring == R600_RING_TYPE_DMA_INDEX)
			r = radeon_copy_dma(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
		else
			r = radeon_copy_blit(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
		if (r) {
			DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
			goto out_lclean_unpin;
		}

		r = radeon_fence_wait(fence, false);
		if (r) {
			DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
			goto out_lclean_unpin;
		}

		radeon_fence_unref(&fence);

		r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
		if (r) {
			DRM_ERROR("Failed to map GTT object after copy %d\n", i);
			goto out_lclean_unpin;
		}

		for (gtt_start = gtt_map, gtt_end = gtt_map + size,
		     vram_start = vram_map, vram_end = vram_map + size;
		     gtt_start < gtt_end;
		     gtt_start++, vram_start++) {
			if (*gtt_start != vram_start) {
				DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
					  "expected 0x%p (VRAM/GTT offset "
					  "0x%16llx/0x%16llx)\n",
					  i, *gtt_start, vram_start,
					  (unsigned long long)
					  (vram_addr - rdev->mc.vram_start +
					   (void*)vram_start - vram_map),
					  (unsigned long long)
					  (gtt_addr - rdev->mc.gtt_start +
					   (void*)vram_start - vram_map));
				radeon_bo_kunmap(gtt_obj[i]);
				goto out_lclean_unpin;
			}
		}

		radeon_bo_kunmap(gtt_obj[i]);

		DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
			 gtt_addr - rdev->mc.gtt_start);
		continue;

out_lclean_unpin:
		radeon_bo_unpin(gtt_obj[i]);
out_lclean_unres:
		radeon_bo_unreserve(gtt_obj[i]);
out_lclean_unref:
		radeon_bo_unref(&gtt_obj[i]);
out_lclean:
		for (--i; i >= 0; --i) {
			radeon_bo_unpin(gtt_obj[i]);
			radeon_bo_unreserve(gtt_obj[i]);
			radeon_bo_unref(&gtt_obj[i]);
		}
		if (fence)
			radeon_fence_unref(&fence);
		break;
	}

	radeon_bo_unpin(vram_obj);
out_unres:
	radeon_bo_unreserve(vram_obj);
out_unref:
	radeon_bo_unref(&vram_obj);
out_cleanup:
	kfree(gtt_obj);
	if (r) {
		printk(KERN_WARNING "Error while testing BO move.\n");
	}
}
Beispiel #3
0
void radeon_benchmark_move(struct radeon_device *rdev, unsigned bsize,
			   unsigned sdomain, unsigned ddomain)
{
	struct radeon_bo *dobj = NULL;
	struct radeon_bo *sobj = NULL;
	struct radeon_fence *fence = NULL;
	uint64_t saddr, daddr;
	unsigned long start_jiffies;
	unsigned long end_jiffies;
	unsigned long time;
	unsigned i, n, size;
	int r;

	size = bsize;
	n = 1024;
	r = radeon_bo_create(rdev, NULL, size, PAGE_SIZE, true, sdomain, &sobj);
	if (r) {
		goto out_cleanup;
	}
	r = radeon_bo_reserve(sobj, false);
	if (unlikely(r != 0))
		goto out_cleanup;
	r = radeon_bo_pin(sobj, sdomain, &saddr);
	radeon_bo_unreserve(sobj);
	if (r) {
		goto out_cleanup;
	}
	r = radeon_bo_create(rdev, NULL, size, PAGE_SIZE, true, ddomain, &dobj);
	if (r) {
		goto out_cleanup;
	}
	r = radeon_bo_reserve(dobj, false);
	if (unlikely(r != 0))
		goto out_cleanup;
	r = radeon_bo_pin(dobj, ddomain, &daddr);
	radeon_bo_unreserve(dobj);
	if (r) {
		goto out_cleanup;
	}

	/* r100 doesn't have dma engine so skip the test */
	if (rdev->asic->copy_dma) {

		start_jiffies = jiffies;
		for (i = 0; i < n; i++) {
			r = radeon_fence_create(rdev, &fence);
			if (r) {
				goto out_cleanup;
			}

			r = radeon_copy_dma(rdev, saddr, daddr,
					size / RADEON_GPU_PAGE_SIZE, fence);

			if (r) {
				goto out_cleanup;
			}
			r = radeon_fence_wait(fence, false);
			if (r) {
				goto out_cleanup;
			}
			radeon_fence_unref(&fence);
		}
		end_jiffies = jiffies;
		time = end_jiffies - start_jiffies;
		time = jiffies_to_msecs(time);
		if (time > 0) {
			i = ((n * size) >> 10) / time;
			printk(KERN_INFO "radeon: dma %u bo moves of %ukb from"
					" %d to %d in %lums (%ukb/ms %ukb/s %uM/s)\n",
					n, size >> 10,
					sdomain, ddomain, time,
					i, i * 1000, (i * 1000) / 1024);
		}