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: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/sgiseeq.c b/drivers/net/sgiseeq.c
index 0fb74cb51c4bed2eaccd46287eaa7f02181b873e..eb67b024e4138de64565fd75f190ebfbd7031bce 100644 (file)
--- a/drivers/net/sgiseeq.c
+++ b/drivers/net/sgiseeq.c
@@ -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);