Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=99cd149efe824cf27c5d34506002a0fbfa831c0f
Commit: 99cd149efe824cf27c5d34506002a0fbfa831c0f
Parent: dc67369573eee33a4b1220d416cb7dd3501dccbc
Author: Ralf Baechle <[EMAIL PROTECTED]>
AuthorDate: Tue Sep 4 14:41:01 2007 +0100
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Oct 10 16:51:07 2007 -0700
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 <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/net/sgiseeq.c | 26 +++++++++++---------------
1 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/drivers/net/sgiseeq.c b/drivers/net/sgiseeq.c
index 0fb74cb..eb67b02 100644
--- 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);
-
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