1 files changed, 35 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index dfc41cd4bb5d..6b740eb6fe7e 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -13,6 +13,8 @@
 #include <linux/capability.h>
 #include <linux/errno.h>
 #include <linux/smp_lock.h>
+#include <linux/msi.h>
+#include <linux/irq.h>
 #include <linux/init.h>
 
 #include <asm/uaccess.h>
@@ -646,4 +648,37 @@ int pci_domain_nr(struct pci_bus *pbus)
 }
 EXPORT_SYMBOL(pci_domain_nr);
 
+#ifdef CONFIG_PCI_MSI
+int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
+{
+        struct pcidev_cookie *pcp = pdev->sysdata;
+        struct pci_pbm_info *pbm = pcp->pbm;
+        struct pci_controller_info *p = pbm->parent;
+        int virt_irq, err;
+
+        if (!pbm->msi_num || !p->setup_msi_irq)
+                return -EINVAL;
+
+        err = p->setup_msi_irq(&virt_irq, pdev, desc);
+        if (err < 0)
+                return err;
+
+        return virt_irq;
+}
+
+void arch_teardown_msi_irq(unsigned int virt_irq)
+{
+        struct msi_desc *entry = get_irq_data(virt_irq);
+        struct pci_dev *pdev = entry->dev;
+        struct pcidev_cookie *pcp = pdev->sysdata;
+        struct pci_pbm_info *pbm = pcp->pbm;
+        struct pci_controller_info *p = pbm->parent;
+
+        if (!pbm->msi_num || !p->setup_msi_irq)
+                return;
+
+        return p->teardown_msi_irq(virt_irq, pdev);
+}
+#endif /* !(CONFIG_PCI_MSI) */
+
 #endif /* !(CONFIG_PCI) */