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