Lines Matching defs:dma

38 #include <linux/dma-mapping.h>
258 	struct grcan_dma dma;
503 	struct grcan_dma *dma = &priv->dma;
527 					     dma->tx.size);
537 	struct grcan_dma *dma = &priv->dma;
558 		txrd = grcan_ring_add(txrd, GRCAN_MSG_SIZE, dma->tx.size);
576 	struct grcan_dma *dma = &priv->dma;
696 				if (grcan_txspace(dma->tx.size, txwr,
864 		if (grcan_txspace(priv->dma.tx.size, txwr, priv->eskbp) &&
926 	struct grcan_dma *dma = &priv->dma;
928 	dma_free_coherent(priv->ofdev_dev, dma->base_size, dma->base_buf,
929 			  dma->base_handle);
930 	memset(dma, 0, sizeof(*dma));
937 	struct grcan_dma *dma = &priv->dma;
938 	struct grcan_dma_buffer *large = rsize > tsize ? &dma->rx : &dma->tx;
939 	struct grcan_dma_buffer *small = rsize > tsize ? &dma->tx : &dma->rx;
952 	dma->base_size = lsize + ssize + GRCAN_BUFFER_ALIGNMENT;
953 	dma->base_buf = dma_alloc_coherent(priv->ofdev_dev,
954 					   dma->base_size,
955 					   &dma->base_handle,
958 	if (!dma->base_buf)
961 	dma->tx.size = tsize;
962 	dma->rx.size = rsize;
964 	large->handle = ALIGN(dma->base_handle, GRCAN_BUFFER_ALIGNMENT);
966 	shift = large->handle - dma->base_handle;
968 	large->buf = dma->base_buf + shift;
983 	grcan_write_reg(&regs->txaddr, priv->dma.tx.handle);
984 	grcan_write_reg(&regs->txsize, priv->dma.tx.size);
987 	grcan_write_reg(&regs->rxaddr, priv->dma.rx.handle);
988 	grcan_write_reg(&regs->rxsize, priv->dma.rx.size);
1045 	struct grcan_dma *dma = &priv->dma;
1057 	priv->echo_skb = kcalloc(dma->tx.size, sizeof(*priv->echo_skb),
1063 	priv->can.echo_skb_max = dma->tx.size;
1159 	struct grcan_dma *dma = &priv->dma;
1185 		slot = dma->rx.buf + rd;
1213 		rd = grcan_ring_add(rd, GRCAN_MSG_SIZE, dma->rx.size);
1272 	struct grcan_dma *dma = &priv->dma;
1293 		if (grcan_txspace(dma->tx.size, txwr, priv->eskbp))
1339 	struct grcan_dma *dma = &priv->dma;
1365 	space = grcan_txspace(dma->tx.size, txwr, priv->eskbp);
1368 	slot = dma->tx.buf + txwr;
1420 		if (unlikely(grcan_ring_sub(txwr, txrd, dma->tx.size) == 1)) {
1445 			grcan_ring_add(txwr, GRCAN_MSG_SIZE, dma->tx.size));