Lines Matching refs:map_offset
37 …_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
42 if (map_offset < 0) in ivtv_udma_fill_sg_list()
43 return map_offset; in ivtv_udma_fill_sg_list()
52 if (PageHighMem(dma->map[map_offset])) { in ivtv_udma_fill_sg_list()
55 if (dma->bouncemap[map_offset] == NULL) in ivtv_udma_fill_sg_list()
56 dma->bouncemap[map_offset] = alloc_page(GFP_KERNEL); in ivtv_udma_fill_sg_list()
57 if (dma->bouncemap[map_offset] == NULL) in ivtv_udma_fill_sg_list()
60 src = kmap_atomic(dma->map[map_offset]) + offset; in ivtv_udma_fill_sg_list()
61 memcpy(page_address(dma->bouncemap[map_offset]) + offset, src, len); in ivtv_udma_fill_sg_list()
64 sg_set_page(&dma->SGlist[map_offset], dma->bouncemap[map_offset], len, offset); in ivtv_udma_fill_sg_list()
67 sg_set_page(&dma->SGlist[map_offset], dma->map[map_offset], len, offset); in ivtv_udma_fill_sg_list()
70 map_offset++; in ivtv_udma_fill_sg_list()
72 return map_offset; in ivtv_udma_fill_sg_list()