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x86/PCI: Do not use interrupt links for devices using MSI-X

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pcibios_enable_device() and pcibios_disable_device() don't handle
IRQs for devices that have MSI enabled and it should treat the
devices with MSI-X enabled in the same way.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
This commit is contained in:
Rafael J. Wysocki authored and Jesse Barnes committed 2009-01-07 11:13:25 -08:00
1 parent ef1bba28bf
commit 16cf0ebc35
2 files changed
+11 -2
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arch/x86/pci/common.c
+2 -2
View File
@@ -551,14 +551,14 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
if ((err = pci_enable_resources(dev, mask)) < 0)
return err;
if (!dev->msi_enabled)
if (!pci_dev_msi_enabled(dev))
return pcibios_enable_irq(dev);
return 0;
}
void pcibios_disable_device (struct pci_dev *dev)
{
if (!dev->msi_enabled && pcibios_disable_irq)
if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq)
pcibios_disable_irq(dev);
}
include/linux/pci.h
+9
View File
@@ -336,6 +336,15 @@ struct pci_bus {
#define pci_bus_b(n) list_entry(n, struct pci_bus, node)
#define to_pci_bus(n) container_of(n, struct pci_bus, dev)
#ifdef CONFIG_PCI_MSI
static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev)
{
return pci_dev->msi_enabled || pci_dev->msix_enabled;
}
#else
static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev) { return false; }
#endif
/*
* Error values that may be returned by PCI functions.
*/