hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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>
This commit is contained in:
Ralf Baechle 2007-09-04 14:41:01 +01:00 committed by David S. Miller
parent dc67369573
commit 99cd149efe
1 changed files with 11 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/net/sgiseeq.c
View File

@ -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);