ACPI/PCI: Set support bit for MSI in support field of _OSC

[linux-2.6-omap-h63xx.git] / drivers / pci / msi.c

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d2812013fd2293e0f5520aaf4e1cd649b715f535..74801f7df9c901ad21017ce2a831e0cd61c8af1c 100644 (file)
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -759,3 +759,24 @@ 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();
+}