/* * Copyright 2009 VMware, 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. * * Authors: Michel Dänzer */#include <drm/drmP.h>#include <drm/amdgpu_drm.h>#include "amdgpu.h"#include "amdgpu_uvd.h"#include "amdgpu_vce.h" /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */static void amdgpu_do_test_moves(struct amdgpu_device *adev){	struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;	struct amdgpu_bo *vram_obj = NULL;	struct amdgpu_bo **gtt_obj = NULL;	uint64_t gtt_addr, vram_addr;	unsigned n, size;	int i, r; 	size = 1024 * 1024; 	/* Number of tests =	 * (Total GTT - IB pool - writeback page - ring buffers) / test size	 */	n = adev->mc.gtt_size - AMDGPU_IB_POOL_SIZE*64*1024;	for (i = 0; i < AMDGPU_MAX_RINGS; ++i)		if (adev->rings[i])			n -= adev->rings[i]->ring_size;	if (adev->wb.wb_obj)		n -= AMDGPU_GPU_PAGE_SIZE;	if (adev->irq.ih.ring_obj)		n -= adev->irq.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 = amdgpu_bo_create(adev, size, PAGE_SIZE, true,			     AMDGPU_GEM_DOMAIN_VRAM, 0,			     NULL, NULL, &vram_obj);	if (r) {		DRM_ERROR("Failed to create VRAM object\n");		goto out_cleanup;	}	r = amdgpu_bo_reserve(vram_obj, false);	if (unlikely(r != 0))		goto out_unref;	r = amdgpu_bo_pin(vram_obj, AMDGPU_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 dma_fence *fence = NULL; 		r = amdgpu_bo_create(adev, size, PAGE_SIZE, true,				     AMDGPU_GEM_DOMAIN_GTT, 0, NULL,				     NULL, gtt_obj + i);		if (r) {			DRM_ERROR("Failed to create GTT object %d\n", i);			goto out_lclean;		} 		r = amdgpu_bo_reserve(gtt_obj[i], false);		if (unlikely(r != 0))			goto out_lclean_unref;		r = amdgpu_bo_pin(gtt_obj[i], AMDGPU_GEM_DOMAIN_GTT, &gtt_addr);		if (r) {			DRM_ERROR("Failed to pin GTT object %d\n", i);			goto out_lclean_unres;		} 		r = amdgpu_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; 		amdgpu_bo_kunmap(gtt_obj[i]); 		r = amdgpu_copy_buffer(ring, gtt_addr, vram_addr,				       size, NULL, &fence, false); 		if (r) {			DRM_ERROR("Failed GTT->VRAM copy %d\n", i);			goto out_lclean_unpin;		} 		r = dma_fence_wait(fence, false);		if (r) {			DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);			goto out_lclean_unpin;		} 		dma_fence_put(fence); 		r = amdgpu_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 - adev->mc.gtt_start +					   (void*)gtt_start - gtt_map),					  (unsigned long long)					  (vram_addr - adev->mc.vram_start +					   (void*)gtt_start - gtt_map));				amdgpu_bo_kunmap(vram_obj);				goto out_lclean_unpin;			}			*vram_start = vram_start;		} 		amdgpu_bo_kunmap(vram_obj); 		r = amdgpu_copy_buffer(ring, vram_addr, gtt_addr,				       size, NULL, &fence, false); 		if (r) {			DRM_ERROR("Failed VRAM->GTT copy %d\n", i);			goto out_lclean_unpin;		} 		r = dma_fence_wait(fence, false);		if (r) {			DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);			goto out_lclean_unpin;		} 		dma_fence_put(fence); 		r = amdgpu_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 - adev->mc.vram_start +					   (void*)vram_start - vram_map),					  (unsigned long long)					  (gtt_addr - adev->mc.gtt_start +					   (void*)vram_start - vram_map));				amdgpu_bo_kunmap(gtt_obj[i]);				goto out_lclean_unpin;			}		} 		amdgpu_bo_kunmap(gtt_obj[i]); 		DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",			 gtt_addr - adev->mc.gtt_start);		continue; out_lclean_unpin:		amdgpu_bo_unpin(gtt_obj[i]);out_lclean_unres:		amdgpu_bo_unreserve(gtt_obj[i]);out_lclean_unref:		amdgpu_bo_unref(&gtt_obj[i]);out_lclean:		for (--i; i >= 0; --i) {			amdgpu_bo_unpin(gtt_obj[i]);			amdgpu_bo_unreserve(gtt_obj[i]);			amdgpu_bo_unref(&gtt_obj[i]);		}		if (fence)			dma_fence_put(fence);		break;	} 	amdgpu_bo_unpin(vram_obj);out_unres:	amdgpu_bo_unreserve(vram_obj);out_unref:	amdgpu_bo_unref(&vram_obj);out_cleanup:	kfree(gtt_obj);	if (r) {		pr_warn("Error while testing BO move\n");	}} void amdgpu_test_moves(struct amdgpu_device *adev){	if (adev->mman.buffer_funcs)		amdgpu_do_test_moves(adev);}