PCI/ASPM: Save/restore L1SS Capability for suspend/resume

[linux-2.6-microblaze.git] / drivers / pci / pci.c

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e578d34..eb52c28 100644 (file)
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1564,6 +1564,7 @@ int pci_save_state(struct pci_dev *dev)
                return i;
 
        pci_save_ltr_state(dev);
+       pci_save_aspm_l1ss_state(dev);
        pci_save_dpc_state(dev);
        pci_save_aer_state(dev);
        return pci_save_vc_state(dev);
@@ -1669,6 +1670,7 @@ void pci_restore_state(struct pci_dev *dev)
         * LTR itself (in the PCIe capability).
         */
        pci_restore_ltr_state(dev);
+       pci_restore_aspm_l1ss_state(dev);
 
        pci_restore_pcie_state(dev);
        pci_restore_pasid_state(dev);
@@ -3332,6 +3334,11 @@ void pci_allocate_cap_save_buffers(struct pci_dev *dev)
        if (error)
                pci_err(dev, "unable to allocate suspend buffer for LTR\n");
 
+       error = pci_add_ext_cap_save_buffer(dev, PCI_EXT_CAP_ID_L1SS,
+                                           2 * sizeof(u32));
+       if (error)
+               pci_err(dev, "unable to allocate suspend buffer for ASPM-L1SS\n");
+
        pci_allocate_vc_save_buffers(dev);
 }