2 files changed, 30 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 57d560c68897..bfcec4cc70a7 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -47,6 +47,7 @@
 #include <linux/cpumask.h>
 #include <linux/profile.h>
 #include <linux/bitops.h>
+#include <linux/pci.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -436,6 +437,30 @@ void do_softirq(void)
 }
 EXPORT_SYMBOL(do_softirq);
 
+#ifdef CONFIG_PCI_MSI
+int pci_enable_msi(struct pci_dev * pdev)
+{
+        if (ppc_md.enable_msi)
+                return ppc_md.enable_msi(pdev);
+        else
+                return -1;
+}
+
+void pci_disable_msi(struct pci_dev * pdev)
+{
+        if (ppc_md.disable_msi)
+                ppc_md.disable_msi(pdev);
+}
+
+void pci_scan_msi_device(struct pci_dev *dev) {}
+int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) {return -1;}
+void pci_disable_msix(struct pci_dev *dev) {}
+void msi_remove_pci_irq_vectors(struct pci_dev *dev) {}
+void disable_msi_mode(struct pci_dev *dev, int pos, int type) {}
+void pci_no_msi(void) {}
+
+#endif
+
 #ifdef CONFIG_PPC64
 static int __init setup_noirqdistrib(char *str)
 {
diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index 0f9254c18914..fc984bd11d8f 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -238,6 +238,11 @@ struct machdep_calls {
          */
         void (*machine_kexec)(struct kimage *image);
 #endif /* CONFIG_KEXEC */
+
+#ifdef CONFIG_PCI_MSI
+        int (*enable_msi)(struct pci_dev *pdev);
+        void (*disable_msi)(struct pci_dev *pdev);
+#endif /* CONFIG_PCI_MSI */
 };
 
 extern void power4_idle(void);