Merge branch 'pci/host-layerscape' into next

[karo-tx-linux.git] / drivers / pci / pcie / aer / aerdrv_core.c

diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 9803e3d039febf7f5ea0e3613da5bb07243d501e..fba785e9df75570b35a9b90e671bc8d5dbad6e91 100644 (file)
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -74,6 +74,34 @@ int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
 }
 EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
 
+int pci_cleanup_aer_error_status_regs(struct pci_dev *dev)
+{
+       int pos;
+       u32 status;
+       int port_type;
+
+       if (!pci_is_pcie(dev))
+               return -ENODEV;
+
+       pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
+       if (!pos)
+               return -EIO;
+
+       port_type = pci_pcie_type(dev);
+       if (port_type == PCI_EXP_TYPE_ROOT_PORT) {
+               pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &status);
+               pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, status);
+       }
+
+       pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &status);
+       pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS, status);
+
+       pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
+       pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status);
+
+       return 0;
+}
+
 /**
  * add_error_device - list device to be handled
  * @e_info: pointer to error info