From: Pekka Enberg <penberg@cs.helsinki.fi>
To: jgarzik@pobox.com
Cc: netdev@oss.sgi.com
Subject: [PATCH] 8139too: use iomap for pio/mmio
Date: Sun, 31 Oct 2004 15:07:55 +0200 [thread overview]
Message-ID: <1099228076.9571.12.camel@localhost> (raw)
Hi,
This patch converts the 8139too driver to use the iomap infrastructure for
PIO and MMIO instead of playing macro tricks. The patch also adds __iomem
annotations for the driver. Compiles and passes sparse checks but not tested
with actual hardware.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
---
8139too.c | 124 ++++++++++++++++++++++++++------------------------------------
1 files changed, 52 insertions(+), 72 deletions(-)
Index: 2.6.10-rc1-mm1/drivers/net/8139too.c
===================================================================
--- 2.6.10-rc1-mm1.orig/drivers/net/8139too.c 2004-10-30 13:29:58.000000000 +0300
+++ 2.6.10-rc1-mm1/drivers/net/8139too.c 2004-10-31 14:42:19.874089928 +0200
@@ -570,7 +570,7 @@
};
struct rtl8139_private {
- void *mmio_addr;
+ void __iomem *mmio_addr;
int drv_flags;
struct pci_dev *pci_dev;
u32 msg_enable;
@@ -614,7 +614,7 @@
MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
-static int read_eeprom (void *ioaddr, int location, int addr_len);
+static int read_eeprom (void __iomem *ioaddr, int location, int addr_len);
static int rtl8139_open (struct net_device *dev);
static int mdio_read (struct net_device *dev, int phy_id, int location);
static void mdio_write (struct net_device *dev, int phy_id, int location,
@@ -638,46 +638,20 @@
static void rtl8139_hw_start (struct net_device *dev);
static struct ethtool_ops rtl8139_ethtool_ops;
-#ifdef USE_IO_OPS
-
-#define RTL_R8(reg) inb (((unsigned long)ioaddr) + (reg))
-#define RTL_R16(reg) inw (((unsigned long)ioaddr) + (reg))
-#define RTL_R32(reg) ((unsigned long) inl (((unsigned long)ioaddr) + (reg)))
-#define RTL_W8(reg, val8) outb ((val8), ((unsigned long)ioaddr) + (reg))
-#define RTL_W16(reg, val16) outw ((val16), ((unsigned long)ioaddr) + (reg))
-#define RTL_W32(reg, val32) outl ((val32), ((unsigned long)ioaddr) + (reg))
-#define RTL_W8_F RTL_W8
-#define RTL_W16_F RTL_W16
-#define RTL_W32_F RTL_W32
-#undef readb
-#undef readw
-#undef readl
-#undef writeb
-#undef writew
-#undef writel
-#define readb(addr) inb((unsigned long)(addr))
-#define readw(addr) inw((unsigned long)(addr))
-#define readl(addr) inl((unsigned long)(addr))
-#define writeb(val,addr) outb((val),(unsigned long)(addr))
-#define writew(val,addr) outw((val),(unsigned long)(addr))
-#define writel(val,addr) outl((val),(unsigned long)(addr))
-
-#else
-
/* write MMIO register, with flush */
/* Flush avoids rtl8139 bug w/ posted MMIO writes */
-#define RTL_W8_F(reg, val8) do { writeb ((val8), ioaddr + (reg)); readb (ioaddr + (reg)); } while (0)
-#define RTL_W16_F(reg, val16) do { writew ((val16), ioaddr + (reg)); readw (ioaddr + (reg)); } while (0)
-#define RTL_W32_F(reg, val32) do { writel ((val32), ioaddr + (reg)); readl (ioaddr + (reg)); } while (0)
+#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0)
+#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0)
+#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0)
#define MMIO_FLUSH_AUDIT_COMPLETE 1
#if MMIO_FLUSH_AUDIT_COMPLETE
/* write MMIO register */
-#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
-#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
-#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
+#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg))
+#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg))
+#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg))
#else
@@ -689,11 +663,9 @@
#endif /* MMIO_FLUSH_AUDIT_COMPLETE */
/* read MMIO register */
-#define RTL_R8(reg) readb (ioaddr + (reg))
-#define RTL_R16(reg) readw (ioaddr + (reg))
-#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
-
-#endif /* USE_IO_OPS */
+#define RTL_R8(reg) ioread8 (ioaddr + (reg))
+#define RTL_R16(reg) ioread16 (ioaddr + (reg))
+#define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg)))
static const u16 rtl8139_intr_mask =
@@ -740,10 +712,13 @@
assert (tp->pci_dev != NULL);
pdev = tp->pci_dev;
-#ifndef USE_IO_OPS
+#ifdef USE_IO_OPS
+ if (tp->mmio_addr)
+ ioport_unmap (tp->mmio_addr);
+#else
if (tp->mmio_addr)
- iounmap (tp->mmio_addr);
-#endif /* !USE_IO_OPS */
+ pci_iounmap (pdev, tp->mmio_addr);
+#endif /* USE_IO_OPS */
/* it's ok to call this even if we have no regions to free */
pci_release_regions (pdev);
@@ -754,7 +729,7 @@
}
-static void rtl8139_chip_reset (void *ioaddr)
+static void rtl8139_chip_reset (void __iomem *ioaddr)
{
int i;
@@ -774,7 +749,7 @@
static int __devinit rtl8139_init_board (struct pci_dev *pdev,
struct net_device **dev_out)
{
- void *ioaddr;
+ void __iomem *ioaddr;
struct net_device *dev;
struct rtl8139_private *tp;
u8 tmp8;
@@ -855,13 +830,18 @@
pci_set_master (pdev);
#ifdef USE_IO_OPS
- ioaddr = (void *) pio_start;
+ ioaddr = ioport_map(pio_start, pio_len);
+ if (!ioaddr) {
+ printk (KERN_ERR PFX "%s: cannot map PIO, aborting\n", pci_name(pdev));
+ rc = -EIO;
+ goto err_out;
+ }
dev->base_addr = pio_start;
tp->mmio_addr = ioaddr;
tp->regs_len = pio_len;
#else
/* ioremap MMIO region */
- ioaddr = ioremap (mmio_start, mmio_len);
+ ioaddr = pci_iomap(dev, mmio_start, mmio_len);
if (ioaddr == NULL) {
printk (KERN_ERR PFX "%s: cannot remap MMIO, aborting\n", pci_name(pdev));
rc = -EIO;
@@ -945,7 +925,7 @@
struct net_device *dev = NULL;
struct rtl8139_private *tp;
int i, addr_len, option;
- void *ioaddr;
+ void __iomem *ioaddr;
static int board_idx = -1;
u8 pci_rev;
@@ -1150,11 +1130,11 @@
#define EE_READ_CMD (6)
#define EE_ERASE_CMD (7)
-static int __devinit read_eeprom (void *ioaddr, int location, int addr_len)
+static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len)
{
int i;
unsigned retval = 0;
- void *ee_addr = ioaddr + Cfg9346;
+ void __iomem *ee_addr = ioaddr + Cfg9346;
int read_cmd = location | (EE_READ_CMD << addr_len);
writeb (EE_ENB & ~EE_CS, ee_addr);
@@ -1219,7 +1199,7 @@
#ifdef CONFIG_8139TOO_8129
/* Syncronize the MII management interface by shifting 32 one bits out. */
-static void mdio_sync (void *mdio_addr)
+static void mdio_sync (void __iomem *mdio_addr)
{
int i;
@@ -1237,7 +1217,7 @@
struct rtl8139_private *tp = netdev_priv(dev);
int retval = 0;
#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
+ void __iomem *mdio_addr = tp->mmio_addr + Config4;
int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
int i;
#endif
@@ -1278,13 +1258,13 @@
{
struct rtl8139_private *tp = netdev_priv(dev);
#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
+ void __iomem *mdio_addr = tp->mmio_addr + Config4;
int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
int i;
#endif
if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
if (location == 0) {
RTL_W8 (Cfg9346, Cfg9346_Unlock);
RTL_W16 (BasicModeCtrl, value);
@@ -1321,7 +1301,7 @@
{
struct rtl8139_private *tp = netdev_priv(dev);
int retval;
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
retval = request_irq (dev->irq, rtl8139_interrupt, SA_SHIRQ, dev->name, dev);
if (retval)
@@ -1378,7 +1358,7 @@
static void rtl8139_hw_start (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u32 i;
u8 tmp;
@@ -1480,7 +1460,7 @@
struct rtl8139_private *tp)
{
int linkcase;
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
/* This is a complicated state machine to configure the "twister" for
impedance/echos based on the cable length.
@@ -1564,7 +1544,7 @@
static inline void rtl8139_thread_iter (struct net_device *dev,
struct rtl8139_private *tp,
- void *ioaddr)
+ void __iomem *ioaddr)
{
int mii_lpa;
@@ -1672,7 +1652,7 @@
static void rtl8139_tx_timeout (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int i;
u8 tmp8;
unsigned long flags;
@@ -1717,7 +1697,7 @@
static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
unsigned int entry;
unsigned int len = skb->len;
@@ -1759,7 +1739,7 @@
static void rtl8139_tx_interrupt (struct net_device *dev,
struct rtl8139_private *tp,
- void *ioaddr)
+ void __iomem *ioaddr)
{
unsigned long dirty_tx, tx_left;
@@ -1829,7 +1809,7 @@
/* TODO: clean this up! Rx reset need not be this intensive */
static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
- struct rtl8139_private *tp, void *ioaddr)
+ struct rtl8139_private *tp, void __iomem *ioaddr)
{
u8 tmp8;
#ifdef CONFIG_8139_OLD_RX_RESET
@@ -1926,7 +1906,7 @@
static void rtl8139_isr_ack(struct rtl8139_private *tp)
{
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u16 status;
status = RTL_R16 (IntrStatus) & RxAckBits;
@@ -1945,7 +1925,7 @@
static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp,
int budget)
{
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int received = 0;
unsigned char *rx_ring = tp->rx_ring;
unsigned int cur_rx = tp->cur_rx;
@@ -2083,7 +2063,7 @@
static void rtl8139_weird_interrupt (struct net_device *dev,
struct rtl8139_private *tp,
- void *ioaddr,
+ void __iomem *ioaddr,
int status, int link_changed)
{
DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n",
@@ -2123,7 +2103,7 @@
static int rtl8139_poll(struct net_device *dev, int *budget)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int orig_budget = min(*budget, dev->quota);
int done = 1;
@@ -2161,7 +2141,7 @@
{
struct net_device *dev = (struct net_device *) dev_instance;
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u16 status, ackstat;
int link_changed = 0; /* avoid bogus "uninit" warning */
int handled = 0;
@@ -2237,7 +2217,7 @@
static int rtl8139_close (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
int ret = 0;
unsigned long flags;
@@ -2300,7 +2280,7 @@
static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct rtl8139_private *np = netdev_priv(dev);
- void *ioaddr = np->mmio_addr;
+ void __iomem *ioaddr = np->mmio_addr;
spin_lock_irq(&np->lock);
if (rtl_chip_info[np->chipset].flags & HasLWake) {
@@ -2334,7 +2314,7 @@
static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct rtl8139_private *np = netdev_priv(dev);
- void *ioaddr = np->mmio_addr;
+ void __iomem *ioaddr = np->mmio_addr;
u32 support;
u8 cfg3, cfg5;
@@ -2502,7 +2482,7 @@
static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
unsigned long flags;
if (netif_running(dev)) {
@@ -2521,7 +2501,7 @@
static void __set_rx_mode (struct net_device *dev)
{
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
u32 mc_filter[2]; /* Multicast hash filter */
int i, rx_mode;
u32 tmp;
@@ -2582,7 +2562,7 @@
{
struct net_device *dev = pci_get_drvdata (pdev);
struct rtl8139_private *tp = netdev_priv(dev);
- void *ioaddr = tp->mmio_addr;
+ void __iomem *ioaddr = tp->mmio_addr;
unsigned long flags;
pci_save_state (pdev);
next reply other threads:[~2004-10-31 13:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-31 13:07 Pekka Enberg [this message]
2004-11-05 8:00 ` [PATCH] 8139too: use iomap for pio/mmio Jeff Garzik
-- strict thread matches above, loose matches on Subject: below --
2004-11-05 21:23 Pekka Enberg
2005-01-07 4:03 ` Jeff Garzik
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