Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/pasem...

[linux-2.6] / drivers / pci / msi.c

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index be1df85e5e2d5ae08b5a3f562cb462589495f409..07c9f09c856dba943a15f7e794ba8e1eaef78387 100644 (file)
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -132,7 +132,7 @@ void read_msi_msg(unsigned int irq, struct msi_msg *msg)
                        pci_read_config_word(dev, msi_data_reg(pos, 1), &data);
                } else {
                        msg->address_hi = 0;
-                       pci_read_config_word(dev, msi_data_reg(pos, 1), &data);
+                       pci_read_config_word(dev, msi_data_reg(pos, 0), &data);
                }
                msg->data = data;
                break;
@@ -224,6 +224,12 @@ static struct msi_desc* alloc_msi_entry(void)
        return entry;
 }
 
+static void pci_intx_for_msi(struct pci_dev *dev, int enable)
+{
+       if (!(dev->dev_flags & PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG))
+               pci_intx(dev, enable);
+}
+
 #ifdef CONFIG_PM
 static void __pci_restore_msi_state(struct pci_dev *dev)
 {
@@ -237,7 +243,7 @@ static void __pci_restore_msi_state(struct pci_dev *dev)
        entry = get_irq_msi(dev->irq);
        pos = entry->msi_attrib.pos;
 
-       pci_intx(dev, 0);               /* disable intx */
+       pci_intx_for_msi(dev, 0);
        msi_set_enable(dev, 0);
        write_msi_msg(dev->irq, &entry->msg);
        if (entry->msi_attrib.maskbit)
@@ -260,7 +266,7 @@ static void __pci_restore_msix_state(struct pci_dev *dev)
                return;
 
        /* route the table */
-       pci_intx(dev, 0);               /* disable intx */
+       pci_intx_for_msi(dev, 0);
        msix_set_enable(dev, 0);
 
        list_for_each_entry(entry, &dev->msi_list, list) {
@@ -343,7 +349,7 @@ static int msi_capability_init(struct pci_dev *dev)
        }
 
        /* Set MSI enabled bits  */
-       pci_intx(dev, 0);               /* disable intx */
+       pci_intx_for_msi(dev, 0);
        msi_set_enable(dev, 1);
        dev->msi_enabled = 1;
 
@@ -433,7 +439,7 @@ static int msix_capability_init(struct pci_dev *dev,
                i++;
        }
        /* Set MSI-X enabled bits */
-       pci_intx(dev, 0);               /* disable intx */
+       pci_intx_for_msi(dev, 0);
        msix_set_enable(dev, 1);
        dev->msix_enabled = 1;
 
@@ -528,7 +534,7 @@ void pci_disable_msi(struct pci_dev* dev)
                return;
 
        msi_set_enable(dev, 0);
-       pci_intx(dev, 1);               /* enable intx */
+       pci_intx_for_msi(dev, 1);
        dev->msi_enabled = 0;
 
        BUG_ON(list_empty(&dev->msi_list));
@@ -640,7 +646,7 @@ void pci_disable_msix(struct pci_dev* dev)
                return;
 
        msix_set_enable(dev, 0);
-       pci_intx(dev, 1);               /* enable intx */
+       pci_intx_for_msi(dev, 1);
        dev->msix_enabled = 0;
 
        msix_free_all_irqs(dev);