345 static void vmw_ttm_unmap_from_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_unmap_from_dma()  argument
347 	struct device *dev = vmw_tt->dev_priv->dev->dev;  in vmw_ttm_unmap_from_dma()
349 	dma_unmap_sg(dev, vmw_tt->sgt.sgl, vmw_tt->sgt.nents,  in vmw_ttm_unmap_from_dma()
351 	vmw_tt->sgt.nents = vmw_tt->sgt.orig_nents;  in vmw_ttm_unmap_from_dma()
367 static int vmw_ttm_map_for_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_map_for_dma()  argument
369 	struct device *dev = vmw_tt->dev_priv->dev->dev;  in vmw_ttm_map_for_dma()
372 	ret = dma_map_sg(dev, vmw_tt->sgt.sgl, vmw_tt->sgt.orig_nents,  in vmw_ttm_map_for_dma()
377 	vmw_tt->sgt.nents = ret;  in vmw_ttm_map_for_dma()
392 static int vmw_ttm_map_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_map_dma()  argument
394 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_map_dma()
396 	struct vmw_sg_table *vsgt = &vmw_tt->vsgt;  in vmw_ttm_map_dma()
403 	if (vmw_tt->mapped)  in vmw_ttm_map_dma()
407 	vsgt->pages = vmw_tt->dma_ttm.ttm.pages;  in vmw_ttm_map_dma()
408 	vsgt->num_pages = vmw_tt->dma_ttm.ttm.num_pages;  in vmw_ttm_map_dma()
409 	vsgt->addrs = vmw_tt->dma_ttm.dma_address;  in vmw_ttm_map_dma()
410 	vsgt->sgt = &vmw_tt->sgt;  in vmw_ttm_map_dma()
419 		vmw_tt->sg_alloc_size = sgt_size + sgl_size * vsgt->num_pages;  in vmw_ttm_map_dma()
420 		ret = ttm_mem_global_alloc(glob, vmw_tt->sg_alloc_size, false,  in vmw_ttm_map_dma()
425 		ret = sg_alloc_table_from_pages(&vmw_tt->sgt, vsgt->pages,  in vmw_ttm_map_dma()
433 		if (vsgt->num_pages > vmw_tt->sgt.nents) {  in vmw_ttm_map_dma()
436 					    vmw_tt->sgt.nents);  in vmw_ttm_map_dma()
439 			vmw_tt->sg_alloc_size -= over_alloc;  in vmw_ttm_map_dma()
442 		ret = vmw_ttm_map_for_dma(vmw_tt);  in vmw_ttm_map_dma()
452 	vmw_tt->vsgt.num_regions = 0;  in vmw_ttm_map_dma()
457 			vmw_tt->vsgt.num_regions++;  in vmw_ttm_map_dma()
461 	vmw_tt->mapped = true;  in vmw_ttm_map_dma()
465 	sg_free_table(vmw_tt->vsgt.sgt);  in vmw_ttm_map_dma()
466 	vmw_tt->vsgt.sgt = NULL;  in vmw_ttm_map_dma()
468 	ttm_mem_global_free(glob, vmw_tt->sg_alloc_size);  in vmw_ttm_map_dma()
481 static void vmw_ttm_unmap_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_unmap_dma()  argument
483 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_unmap_dma()
485 	if (!vmw_tt->vsgt.sgt)  in vmw_ttm_unmap_dma()
491 		vmw_ttm_unmap_from_dma(vmw_tt);  in vmw_ttm_unmap_dma()
492 		sg_free_table(vmw_tt->vsgt.sgt);  in vmw_ttm_unmap_dma()
493 		vmw_tt->vsgt.sgt = NULL;  in vmw_ttm_unmap_dma()
495 				    vmw_tt->sg_alloc_size);  in vmw_ttm_unmap_dma()
500 	vmw_tt->mapped = false;  in vmw_ttm_unmap_dma()
516 	struct vmw_ttm_tt *vmw_tt =  in vmw_bo_map_dma()  local
519 	return vmw_ttm_map_dma(vmw_tt);  in vmw_bo_map_dma()
533 	struct vmw_ttm_tt *vmw_tt =  in vmw_bo_unmap_dma()  local
536 	vmw_ttm_unmap_dma(vmw_tt);  in vmw_bo_unmap_dma()
553 	struct vmw_ttm_tt *vmw_tt =  in vmw_bo_sg_table()  local
556 	return &vmw_tt->vsgt;  in vmw_bo_sg_table()
637 	struct vmw_ttm_tt *vmw_tt =  in vmw_ttm_populate()  local
639 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_populate()
653 		ret = ttm_dma_populate(&vmw_tt->dma_ttm, dev_priv->dev->dev);  in vmw_ttm_populate()
664 	struct vmw_ttm_tt *vmw_tt = container_of(ttm, struct vmw_ttm_tt,  in vmw_ttm_unpopulate()  local
666 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_unpopulate()
670 	if (vmw_tt->mob) {  in vmw_ttm_unpopulate()
671 		vmw_mob_destroy(vmw_tt->mob);  in vmw_ttm_unpopulate()
672 		vmw_tt->mob = NULL;  in vmw_ttm_unpopulate()
675 	vmw_ttm_unmap_dma(vmw_tt);  in vmw_ttm_unpopulate()
680 		ttm_dma_unpopulate(&vmw_tt->dma_ttm, dev_priv->dev->dev);  in vmw_ttm_unpopulate()