[TG3]: Use ioremap_nocache().

Noticed by Andi Kleen.
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -8249,7 +8249,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	spin_lock_init(&tp->indirect_lock);
 	INIT_WORK(&tp->reset_task, tg3_reset_task, tp);
 
-	tp->regs = ioremap(tg3reg_base, tg3reg_len);
+	tp->regs = ioremap_nocache(tg3reg_base, tg3reg_len);
 	if (tp->regs == 0UL) {
 		printk(KERN_ERR PFX "Cannot map device registers, "
 		       "aborting.\n");