Lines Matching refs:map_offset
25 int ivtv_udma_fill_sg_list (struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset)
30 if (map_offset < 0)
31 return map_offset;
40 if (PageHighMem(dma->map[map_offset])) {
43 if (dma->bouncemap[map_offset] == NULL)
44 dma->bouncemap[map_offset] = alloc_page(GFP_KERNEL);
45 if (dma->bouncemap[map_offset] == NULL)
48 src = kmap_atomic(dma->map[map_offset]) + offset;
49 memcpy(page_address(dma->bouncemap[map_offset]) + offset, src, len);
52 sg_set_page(&dma->SGlist[map_offset], dma->bouncemap[map_offset], len, offset);
55 sg_set_page(&dma->SGlist[map_offset], dma->map[map_offset], len, offset);
58 map_offset++;
60 return map_offset;