IGU_FIFO_DEPTH_DWORDS
for (dwords_read = 0; fifo_has_data && dwords_read < IGU_FIFO_DEPTH_DWORDS; dwords_read += IGU_FIFO_ELEMENT_DWORDS, offset += IGU_FIFO_ELEMENT_DWORDS) {
offset += IGU_FIFO_DEPTH_DWORDS;