Lines Matching defs:head
109 struct cpdma_desc __iomem *head, *tail;
392 if (chan->head) {
393 chan_write(chan, hdp, desc_phys(pool, chan->head));
992 if (!chan->head) {
994 chan->head = desc;
1231 desc = chan->head;
1253 chan->head = desc_from_phys(pool, desc_read(desc, hw_next));
1258 if ((status & CPDMA_DESC_EOQ) && chan->head) {
1260 chan_write(chan, hdp, desc_phys(pool, chan->head));
1354 while (chan->head) {
1355 struct cpdma_desc __iomem *desc = chan->head;
1359 chan->head = desc_from_phys(pool, next_dma);