262 static void vmw_ttm_unmap_from_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_unmap_from_dma()  argument
264 	struct device *dev = vmw_tt->dev_priv->drm.dev;  in vmw_ttm_unmap_from_dma()
266 	dma_unmap_sgtable(dev, &vmw_tt->sgt, DMA_BIDIRECTIONAL, 0);  in vmw_ttm_unmap_from_dma()
267 	vmw_tt->sgt.nents = vmw_tt->sgt.orig_nents;  in vmw_ttm_unmap_from_dma()
283 static int vmw_ttm_map_for_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_map_for_dma()  argument
285 	struct device *dev = vmw_tt->dev_priv->drm.dev;  in vmw_ttm_map_for_dma()
287 	return dma_map_sgtable(dev, &vmw_tt->sgt, DMA_BIDIRECTIONAL, 0);  in vmw_ttm_map_for_dma()
300 static int vmw_ttm_map_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_map_dma()  argument
302 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_map_dma()
304 	struct vmw_sg_table *vsgt = &vmw_tt->vsgt;  in vmw_ttm_map_dma()
315 	if (vmw_tt->mapped)  in vmw_ttm_map_dma()
319 	vsgt->pages = vmw_tt->dma_ttm.pages;  in vmw_ttm_map_dma()
320 	vsgt->num_pages = vmw_tt->dma_ttm.num_pages;  in vmw_ttm_map_dma()
321 	vsgt->addrs = vmw_tt->dma_ttm.dma_address;  in vmw_ttm_map_dma()
322 	vsgt->sgt = &vmw_tt->sgt;  in vmw_ttm_map_dma()
331 		vmw_tt->sg_alloc_size = sgt_size + sgl_size * vsgt->num_pages;  in vmw_ttm_map_dma()
332 		ret = ttm_mem_global_alloc(glob, vmw_tt->sg_alloc_size, &ctx);  in vmw_ttm_map_dma()
337 			&vmw_tt->sgt, vsgt->pages, vsgt->num_pages, 0,  in vmw_ttm_map_dma()
343 		if (vsgt->num_pages > vmw_tt->sgt.orig_nents) {  in vmw_ttm_map_dma()
346 					    vmw_tt->sgt.orig_nents);  in vmw_ttm_map_dma()
349 			vmw_tt->sg_alloc_size -= over_alloc;  in vmw_ttm_map_dma()
352 		ret = vmw_ttm_map_for_dma(vmw_tt);  in vmw_ttm_map_dma()
362 	vmw_tt->vsgt.num_regions = 0;  in vmw_ttm_map_dma()
367 			vmw_tt->vsgt.num_regions++;  in vmw_ttm_map_dma()
371 	vmw_tt->mapped = true;  in vmw_ttm_map_dma()
375 	sg_free_table(vmw_tt->vsgt.sgt);  in vmw_ttm_map_dma()
376 	vmw_tt->vsgt.sgt = NULL;  in vmw_ttm_map_dma()
378 	ttm_mem_global_free(glob, vmw_tt->sg_alloc_size);  in vmw_ttm_map_dma()
391 static void vmw_ttm_unmap_dma(struct vmw_ttm_tt *vmw_tt)  in vmw_ttm_unmap_dma()  argument
393 	struct vmw_private *dev_priv = vmw_tt->dev_priv;  in vmw_ttm_unmap_dma()
395 	if (!vmw_tt->vsgt.sgt)  in vmw_ttm_unmap_dma()
401 		vmw_ttm_unmap_from_dma(vmw_tt);  in vmw_ttm_unmap_dma()
402 		sg_free_table(vmw_tt->vsgt.sgt);  in vmw_ttm_unmap_dma()
403 		vmw_tt->vsgt.sgt = NULL;  in vmw_ttm_unmap_dma()
405 				    vmw_tt->sg_alloc_size);  in vmw_ttm_unmap_dma()
410 	vmw_tt->mapped = false;  in vmw_ttm_unmap_dma()
426 	struct vmw_ttm_tt *vmw_tt =  in vmw_bo_sg_table()  local
429 	return &vmw_tt->vsgt;  in vmw_bo_sg_table()
561 	struct vmw_ttm_tt *vmw_tt = container_of(ttm, struct vmw_ttm_tt,  in vmw_ttm_unpopulate()  local
565 	if (vmw_tt->mob) {  in vmw_ttm_unpopulate()
566 		vmw_mob_destroy(vmw_tt->mob);  in vmw_ttm_unpopulate()
567 		vmw_tt->mob = NULL;  in vmw_ttm_unpopulate()
570 	vmw_ttm_unmap_dma(vmw_tt);  in vmw_ttm_unpopulate()
746 		struct vmw_ttm_tt *vmw_tt =  in vmw_bo_create_and_populate()  local
748 		ret = vmw_ttm_map_dma(vmw_tt);  in vmw_bo_create_and_populate()