181 static struct vgacon_scrollback_info *vgacon_scrollback_cur;  variable
211 	vgacon_scrollback_cur = &vgacon_scrollbacks[vc_num];  in vgacon_scrollback_init()
213 	vgacon_scrollback_cur->rows = rows - 1;  in vgacon_scrollback_init()
214 	vgacon_scrollback_cur->size = rows * pitch;  in vgacon_scrollback_init()
228 			vgacon_scrollback_cur = &vgacon_scrollbacks[vc_num];  in vgacon_scrollback_switch()
239 	vgacon_scrollback_cur = &vgacon_scrollbacks[0];  in vgacon_scrollback_startup()
247 	if (!vgacon_scrollback_cur->data || !vgacon_scrollback_cur->size ||  in vgacon_scrollback_update()
254 		scr_memcpyw(vgacon_scrollback_cur->data +  in vgacon_scrollback_update()
255 			    vgacon_scrollback_cur->tail,  in vgacon_scrollback_update()
258 		vgacon_scrollback_cur->cnt++;  in vgacon_scrollback_update()
260 		vgacon_scrollback_cur->tail += c->vc_size_row;  in vgacon_scrollback_update()
262 		if (vgacon_scrollback_cur->tail >= vgacon_scrollback_cur->size)  in vgacon_scrollback_update()
263 			vgacon_scrollback_cur->tail = 0;  in vgacon_scrollback_update()
265 		if (vgacon_scrollback_cur->cnt > vgacon_scrollback_cur->rows)  in vgacon_scrollback_update()
266 			vgacon_scrollback_cur->cnt = vgacon_scrollback_cur->rows;  in vgacon_scrollback_update()
268 		vgacon_scrollback_cur->cur = vgacon_scrollback_cur->cnt;  in vgacon_scrollback_update()
274 	vgacon_scrollback_cur->save = 0;  in vgacon_restore_screen()
276 	if (!vga_is_gfx && !vgacon_scrollback_cur->restore) {  in vgacon_restore_screen()
280 		vgacon_scrollback_cur->restore = 1;  in vgacon_restore_screen()
281 		vgacon_scrollback_cur->cur = vgacon_scrollback_cur->cnt;  in vgacon_restore_screen()
295 	if (!vgacon_scrollback_cur->data)  in vgacon_scrolldelta()
298 	if (!vgacon_scrollback_cur->save) {  in vgacon_scrolldelta()
301 		vgacon_scrollback_cur->save = 1;  in vgacon_scrolldelta()
304 	vgacon_scrollback_cur->restore = 0;  in vgacon_scrolldelta()
305 	start = vgacon_scrollback_cur->cur + lines;  in vgacon_scrolldelta()
311 	if (start > vgacon_scrollback_cur->cnt)  in vgacon_scrolldelta()
312 		start = vgacon_scrollback_cur->cnt;  in vgacon_scrolldelta()
317 	if (end > vgacon_scrollback_cur->cnt)  in vgacon_scrolldelta()
318 		end = vgacon_scrollback_cur->cnt;  in vgacon_scrolldelta()
320 	vgacon_scrollback_cur->cur = start;  in vgacon_scrolldelta()
322 	soff = vgacon_scrollback_cur->tail -  in vgacon_scrolldelta()
323 		((vgacon_scrollback_cur->cnt - end) * c->vc_size_row);  in vgacon_scrolldelta()
327 		soff += vgacon_scrollback_cur->size;  in vgacon_scrolldelta()
329 	count = vgacon_scrollback_cur->cnt - start;  in vgacon_scrolldelta()
343 		copysize = min(count, vgacon_scrollback_cur->size - soff);  in vgacon_scrolldelta()
344 		scr_memcpyw(d, vgacon_scrollback_cur->data + soff, copysize);  in vgacon_scrolldelta()
349 			scr_memcpyw(d, vgacon_scrollback_cur->data, count);  in vgacon_scrolldelta()