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ACPI/PCI: PCI MSI _OSC support capabilities called when root bridge added

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The _OSC capability OSC_MSI_SUPPORT is set when the root bridge is added
with pci_acpi_osc_support(), so we no longer need to do it in the PCI
MSI driver.  Also adds the function pci_msi_enabled, which returns true
if pci=nomsi is not on the kernel command-line.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Andrew Patterson
2008-11-10 15:31:05 -07:00
committed by Jesse Barnes
parent eb9188bdb9
commit 07ae95f988
5 changed files with 19 additions and 25 deletions
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33
drivers/pci/msi.c
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@@ -776,28 +776,19 @@ void pci_no_msi(void)
pci_msi_enable = 0;
}
/**
* pci_msi_enabled - is MSI enabled?
*
* Returns true if MSI has not been disabled by the command-line option
* pci=nomsi.
**/
int pci_msi_enabled(void)
{
return pci_msi_enable;
}
EXPORT_SYMBOL(pci_msi_enabled);
void pci_msi_init_pci_dev(struct pci_dev *dev)
{
INIT_LIST_HEAD(&dev->msi_list);
}
#ifdef CONFIG_ACPI
#include <linux/acpi.h>
#include <linux/pci-acpi.h>
static void __devinit msi_acpi_init(void)
{
if (acpi_pci_disabled)
return;
pci_osc_support_set(OSC_MSI_SUPPORT);
pcie_osc_support_set(OSC_MSI_SUPPORT);
}
#else
static inline void msi_acpi_init(void) { }
#endif /* CONFIG_ACPI */
void __devinit msi_init(void)
{
if (!pci_msi_enable)
return;
msi_acpi_init();
}