63 						  int nr_pages)  in videobuf_vmalloc_to_sg()  argument
69 	sglist = vzalloc(array_size(nr_pages, sizeof(*sglist)));  in videobuf_vmalloc_to_sg()
72 	sg_init_table(sglist, nr_pages);  in videobuf_vmalloc_to_sg()
73 	for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {  in videobuf_vmalloc_to_sg()
93 					int nr_pages, int offset, size_t size)  in videobuf_pages_to_sg()  argument
100 	sglist = vmalloc(array_size(nr_pages, sizeof(*sglist)));  in videobuf_pages_to_sg()
103 	sg_init_table(sglist, nr_pages);  in videobuf_pages_to_sg()
111 	for (i = 1; i < nr_pages; i++) {  in videobuf_pages_to_sg()
174 	dma->nr_pages = last-first+1;  in videobuf_dma_init_user_locked()
175 	dma->pages = kmalloc_array(dma->nr_pages, sizeof(struct page *),  in videobuf_dma_init_user_locked()
184 		data, size, dma->nr_pages);  in videobuf_dma_init_user_locked()
186 	err = pin_user_pages(data & PAGE_MASK, dma->nr_pages,  in videobuf_dma_init_user_locked()
189 	if (err != dma->nr_pages) {  in videobuf_dma_init_user_locked()
190 		dma->nr_pages = (err >= 0) ? err : 0;  in videobuf_dma_init_user_locked()
192 			dma->nr_pages);  in videobuf_dma_init_user_locked()
211 				    unsigned long nr_pages)  in videobuf_dma_init_kernel()  argument
215 	dprintk(1, "init kernel [%lu pages]\n", nr_pages);  in videobuf_dma_init_kernel()
218 	dma->vaddr_pages = kcalloc(nr_pages, sizeof(*dma->vaddr_pages),  in videobuf_dma_init_kernel()
223 	dma->dma_addr = kcalloc(nr_pages, sizeof(*dma->dma_addr), GFP_KERNEL);  in videobuf_dma_init_kernel()
228 	for (i = 0; i < nr_pages; i++) {  in videobuf_dma_init_kernel()
238 	dma->vaddr = vmap(dma->vaddr_pages, nr_pages, VM_MAP | VM_IOREMAP,  in videobuf_dma_init_kernel()
241 		dprintk(1, "vmalloc_32(%lu pages) failed\n", nr_pages);  in videobuf_dma_init_kernel()
246 		dma->vaddr, nr_pages << PAGE_SHIFT);  in videobuf_dma_init_kernel()
248 	memset(dma->vaddr, 0, nr_pages << PAGE_SHIFT);  in videobuf_dma_init_kernel()
249 	dma->nr_pages = nr_pages;  in videobuf_dma_init_kernel()
270 			      dma_addr_t addr, unsigned long nr_pages)  in videobuf_dma_init_overlay()  argument
273 		nr_pages, (unsigned long)addr);  in videobuf_dma_init_overlay()
280 	dma->nr_pages = nr_pages;  in videobuf_dma_init_overlay()
288 	BUG_ON(0 == dma->nr_pages);  in videobuf_dma_map()
291 		dma->sglist = videobuf_pages_to_sg(dma->pages, dma->nr_pages,  in videobuf_dma_map()
296 						     dma->nr_pages);  in videobuf_dma_map()
305 			sg_dma_len(&dma->sglist[0]) = dma->nr_pages * PAGE_SIZE;  in videobuf_dma_map()
314 					dma->nr_pages, dma->direction);  in videobuf_dma_map()
335 	dma_unmap_sg(dev, dma->sglist, dma->nr_pages, dma->direction);  in videobuf_dma_unmap()
352 		unpin_user_pages_dirty_lock(dma->pages, dma->nr_pages,  in videobuf_dma_free()
359 		for (i = 0; i < dma->nr_pages; i++) {  in videobuf_dma_free()
583 			    mem->dma.nr_pages, mem->dma.direction);  in __videobuf_sync()