[PATCH] PCI: MSI(X) save/restore for suspend/resume

Add MSI(X) configure sapce save/restore in generic PCI helper.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index bea1ad1ad5ba..69a617d21824 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -444,6 +444,10 @@ pci_save_state(struct pci_dev *dev)
         /* XXX: 100% dword access ok here? */
         for (i = 0; i < 16; i++)
                 pci_read_config_dword(dev, i * 4,&dev->saved_config_space[i]);
+        if ((i = pci_save_msi_state(dev)) != 0)
+                return i;
+        if ((i = pci_save_msix_state(dev)) != 0)
+                return i;
         return 0;
 }
 
@@ -458,6 +462,8 @@ pci_restore_state(struct pci_dev *dev)
 
         for (i = 0; i < 16; i++)
                 pci_write_config_dword(dev,i * 4, dev->saved_config_space[i]);
+        pci_restore_msi_state(dev);
+        pci_restore_msix_state(dev);
         return 0;
 }