21 	dma_page->page_count = dma_page->last - dma_page->first + 1;  in ivtv_udma_get_page_info()
22 	if (dma_page->page_count == 1) dma_page->tail -= dma_page->offset;  in ivtv_udma_get_page_info()
36 	for (i = 0; i < dma_page->page_count; i++) {  in ivtv_udma_fill_sg_list()
37 		unsigned int len = (i == dma_page->page_count - 1) ?  in ivtv_udma_fill_sg_list()
100 	if (dma->SG_length || dma->page_count) {  in ivtv_udma_setup()
102 			   dma->SG_length, dma->page_count);  in ivtv_udma_setup()
108 	if (user_dma.page_count <= 0) {  in ivtv_udma_setup()
110 			   user_dma.page_count, size_in_bytes, user_dma.offset);  in ivtv_udma_setup()
115 	err = pin_user_pages_unlocked(user_dma.uaddr, user_dma.page_count,  in ivtv_udma_setup()
118 	if (user_dma.page_count != err) {  in ivtv_udma_setup()
120 			   err, user_dma.page_count);  in ivtv_udma_setup()
128 	dma->page_count = user_dma.page_count;  in ivtv_udma_setup()
132 		unpin_user_pages(dma->map, dma->page_count);  in ivtv_udma_setup()
133 		dma->page_count = 0;  in ivtv_udma_setup()
138 	dma->SG_length = pci_map_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);  in ivtv_udma_setup()
147 	return dma->page_count;  in ivtv_udma_setup()
157 	if (dma->page_count == 0)  in ivtv_udma_unmap()
162 		pci_unmap_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);  in ivtv_udma_unmap()
168 	unpin_user_pages(dma->map, dma->page_count);  in ivtv_udma_unmap()
169 	dma->page_count = 0;  in ivtv_udma_unmap()
184 		pci_unmap_sg(itv->pdev, itv->udma.SGlist, itv->udma.page_count, PCI_DMA_TODEVICE);  in ivtv_udma_free()