361 static void vmw_ttm_unmap_from_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_unmap_from_dma()  argument
363 	struct device *dev = vmw_tt->dev_priv->dev->dev;  in vmw_ttm_unmap_from_dma()
365 	dma_unmap_sg(dev, vmw_tt->sgt.sgl, vmw_tt->sgt.nents,  in vmw_ttm_unmap_from_dma()
367 	vmw_tt->sgt.nents = vmw_tt->sgt.orig_nents;  in vmw_ttm_unmap_from_dma()
383 static int vmw_ttm_map_for_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_map_for_dma()  argument
385 	struct device *dev = vmw_tt->dev_priv->dev->dev;  in vmw_ttm_map_for_dma()
388 	ret = dma_map_sg(dev, vmw_tt->sgt.sgl, vmw_tt->sgt.orig_nents,  in vmw_ttm_map_for_dma()
393 	vmw_tt->sgt.nents = ret;  in vmw_ttm_map_for_dma()
408 static int vmw_ttm_map_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_map_dma()  argument
410 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_map_dma()
412 	struct vmw_sg_table *vsgt = &vmw_tt->vsgt;  in vmw_ttm_map_dma()
423 	if (vmw_tt->mapped)  in vmw_ttm_map_dma()
427 	vsgt->pages = vmw_tt->dma_ttm.ttm.pages;  in vmw_ttm_map_dma()
428 	vsgt->num_pages = vmw_tt->dma_ttm.ttm.num_pages;  in vmw_ttm_map_dma()
429 	vsgt->addrs = vmw_tt->dma_ttm.dma_address;  in vmw_ttm_map_dma()
430 	vsgt->sgt = &vmw_tt->sgt;  in vmw_ttm_map_dma()
439 		vmw_tt->sg_alloc_size = sgt_size + sgl_size * vsgt->num_pages;  in vmw_ttm_map_dma()
440 		ret = ttm_mem_global_alloc(glob, vmw_tt->sg_alloc_size, &ctx);  in vmw_ttm_map_dma()
445 			(&vmw_tt->sgt, vsgt->pages, vsgt->num_pages, 0,  in vmw_ttm_map_dma()
452 		if (vsgt->num_pages > vmw_tt->sgt.nents) {  in vmw_ttm_map_dma()
455 					    vmw_tt->sgt.nents);  in vmw_ttm_map_dma()
458 			vmw_tt->sg_alloc_size -= over_alloc;  in vmw_ttm_map_dma()
461 		ret = vmw_ttm_map_for_dma(vmw_tt);  in vmw_ttm_map_dma()
471 	vmw_tt->vsgt.num_regions = 0;  in vmw_ttm_map_dma()
476 			vmw_tt->vsgt.num_regions++;  in vmw_ttm_map_dma()
480 	vmw_tt->mapped = true;  in vmw_ttm_map_dma()
484 	sg_free_table(vmw_tt->vsgt.sgt);  in vmw_ttm_map_dma()
485 	vmw_tt->vsgt.sgt = NULL;  in vmw_ttm_map_dma()
487 	ttm_mem_global_free(glob, vmw_tt->sg_alloc_size);  in vmw_ttm_map_dma()
500 static void vmw_ttm_unmap_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_unmap_dma()  argument
502 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_unmap_dma()
504 	if (!vmw_tt->vsgt.sgt)  in vmw_ttm_unmap_dma()
510 		vmw_ttm_unmap_from_dma(vmw_tt);  in vmw_ttm_unmap_dma()
511 		sg_free_table(vmw_tt->vsgt.sgt);  in vmw_ttm_unmap_dma()
512 		vmw_tt->vsgt.sgt = NULL;  in vmw_ttm_unmap_dma()
514 				    vmw_tt->sg_alloc_size);  in vmw_ttm_unmap_dma()
519 	vmw_tt->mapped = false;  in vmw_ttm_unmap_dma()
535 	struct vmw_ttm_tt *vmw_tt =  in vmw_bo_map_dma()  local
538 	return vmw_ttm_map_dma(vmw_tt);  in vmw_bo_map_dma()
552 	struct vmw_ttm_tt *vmw_tt =  in vmw_bo_unmap_dma()  local
555 	vmw_ttm_unmap_dma(vmw_tt);  in vmw_bo_unmap_dma()
572 	struct vmw_ttm_tt *vmw_tt =  in vmw_bo_sg_table()  local
575 	return &vmw_tt->vsgt;  in vmw_bo_sg_table()
656 	struct vmw_ttm_tt *vmw_tt =  in vmw_ttm_populate()  local
658 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_populate()
672 		ret = ttm_dma_populate(&vmw_tt->dma_ttm, dev_priv->dev->dev,  in vmw_ttm_populate()
684 	struct vmw_ttm_tt *vmw_tt = container_of(ttm, struct vmw_ttm_tt,  in vmw_ttm_unpopulate()  local
686 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_unpopulate()
690 	if (vmw_tt->mob) {  in vmw_ttm_unpopulate()
691 		vmw_mob_destroy(vmw_tt->mob);  in vmw_ttm_unpopulate()
692 		vmw_tt->mob = NULL;  in vmw_ttm_unpopulate()
695 	vmw_ttm_unmap_dma(vmw_tt);  in vmw_ttm_unpopulate()
700 		ttm_dma_unpopulate(&vmw_tt->dma_ttm, dev_priv->dev->dev);  in vmw_ttm_unpopulate()