Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 99cd149e authored by Ralf Baechle's avatar Ralf Baechle Committed by David S. Miller
Browse files

sgiseeq: replace use of dma_cache_wback_inv 



The sgiseeq driver is one of the few remaining users of the ancient
cache banging DMA API.  Replaced with the modern days DMA API.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent dc673695

drivers/net/sgiseeq.c

+11 −15
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@ struct sgiseeq_init_block { /* Note the name ;-) */ 


struct sgiseeq_private {

	struct sgiseeq_init_block *srings;

	dma_addr_t srings_dma;



	/* Ptrs to the descriptors in uncached space. */

	struct sgiseeq_rx_desc *rx_desc;
@@ -643,13 +644,20 @@ static int __init sgiseeq_probe(struct platform_device *pdev) 
	sp = netdev_priv(dev);



	/* Make private data page aligned */

	sr = (struct sgiseeq_init_block *) get_zeroed_page(GFP_KERNEL);

	sr = dma_alloc_coherent(&pdev->dev, sizeof(*sp->srings),

				&sp->srings_dma, GFP_KERNEL);

	if (!sr) {

		printk(KERN_ERR "Sgiseeq: Page alloc failed, aborting.\n");

		err = -ENOMEM;

		goto err_out_free_dev;

	}

	sp->srings = sr;

	sp->rx_desc = sp->srings->rxvector;

	sp->tx_desc = sp->srings->txvector;



	/* A couple calculations now, saves many cycles later. */

	setup_rx_ring(sp->rx_desc, SEEQ_RX_BUFFERS);

	setup_tx_ring(sp->tx_desc, SEEQ_TX_BUFFERS);



	memcpy(dev->dev_addr, pd->mac, ETH_ALEN);
@@ -662,19 +670,6 @@ static int __init sgiseeq_probe(struct platform_device *pdev) 
	sp->name = sgiseeqstr;

	sp->mode = SEEQ_RCMD_RBCAST;



	sp->rx_desc = (struct sgiseeq_rx_desc *)

	              CKSEG1ADDR(ALIGNED(&sp->srings->rxvector[0]));

	dma_cache_wback_inv((unsigned long)&sp->srings->rxvector,

	                    sizeof(sp->srings->rxvector));

	sp->tx_desc = (struct sgiseeq_tx_desc *)

	              CKSEG1ADDR(ALIGNED(&sp->srings->txvector[0]));

	dma_cache_wback_inv((unsigned long)&sp->srings->txvector,

	                    sizeof(sp->srings->txvector));



	/* A couple calculations now, saves many cycles later. */

	setup_rx_ring(sp->rx_desc, SEEQ_RX_BUFFERS);

	setup_tx_ring(sp->tx_desc, SEEQ_TX_BUFFERS);



	/* Setup PIO and DMA transfer timing */

	sp->hregs->pconfig = 0x161;

	sp->hregs->dconfig = HPC3_EDCFG_FIRQ | HPC3_EDCFG_FEOP |
@@ -732,7 +727,8 @@ static int __exit sgiseeq_remove(struct platform_device *pdev) 
	struct sgiseeq_private *sp = netdev_priv(dev);



	unregister_netdev(dev);

	free_page((unsigned long) sp->srings);

	dma_free_coherent(&pdev->dev, sizeof(*sp->srings), sp->srings,

	                  sp->srings_dma);

	free_netdev(dev);

	platform_set_drvdata(pdev, NULL);