33 	dma_page->page_count = dma_page->last - dma_page->first + 1;  in ivtv_udma_get_page_info()
34 	if (dma_page->page_count == 1) dma_page->tail -= dma_page->offset;  in ivtv_udma_get_page_info()
48 	for (i = 0; i < dma_page->page_count; i++) {  in ivtv_udma_fill_sg_list()
49 		unsigned int len = (i == dma_page->page_count - 1) ?  in ivtv_udma_fill_sg_list()
112 	if (dma->SG_length || dma->page_count) {  in ivtv_udma_setup()
114 			   dma->SG_length, dma->page_count);  in ivtv_udma_setup()
120 	if (user_dma.page_count <= 0) {  in ivtv_udma_setup()
122 			   user_dma.page_count, size_in_bytes, user_dma.offset);  in ivtv_udma_setup()
127 	err = get_user_pages_unlocked(user_dma.uaddr, user_dma.page_count,  in ivtv_udma_setup()
130 	if (user_dma.page_count != err) {  in ivtv_udma_setup()
132 			   err, user_dma.page_count);  in ivtv_udma_setup()
141 	dma->page_count = user_dma.page_count;  in ivtv_udma_setup()
145 		for (i = 0; i < dma->page_count; i++) {  in ivtv_udma_setup()
148 		dma->page_count = 0;  in ivtv_udma_setup()
153 	dma->SG_length = pci_map_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);  in ivtv_udma_setup()
162 	return dma->page_count;  in ivtv_udma_setup()
173 	if (dma->page_count == 0)  in ivtv_udma_unmap()
178 		pci_unmap_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);  in ivtv_udma_unmap()
185 	for (i = 0; i < dma->page_count; i++) {  in ivtv_udma_unmap()
188 	dma->page_count = 0;  in ivtv_udma_unmap()
203 		pci_unmap_sg(itv->pdev, itv->udma.SGlist, itv->udma.page_count, PCI_DMA_TODEVICE);  in ivtv_udma_free()