diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/pci.c | 3 | ||||
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_core.c | 28 | ||||
| -rw-r--r-- | drivers/pci/probe.c | 3 |
3 files changed, 34 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 6a9a1116f1eb..62ecf45a4230 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -27,6 +27,7 @@ #include <linux/pci_hotplug.h> #include <asm-generic/pci-bridge.h> #include <asm/setup.h> +#include <linux/aer.h> #include "pci.h" const char *pci_power_names[] = { @@ -1099,6 +1100,8 @@ void pci_restore_state(struct pci_dev *dev) pci_restore_ats_state(dev); pci_restore_vc_state(dev); + pci_cleanup_aer_error_status_regs(dev); + pci_restore_config_space(dev); pci_restore_pcix_state(dev); diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 9803e3d039fe..fba785e9df75 100644 --- 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 diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 0b2be174d981..8cd9710498e4 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/cpumask.h> #include <linux/pci-aspm.h> +#include <linux/aer.h> #include <asm-generic/pci-bridge.h> #include "pci.h" @@ -1621,6 +1622,8 @@ static void pci_init_capabilities(struct pci_dev *dev) /* Enable ACS P2P upstream forwarding */ pci_enable_acs(dev); + + pci_cleanup_aer_error_status_regs(dev); } static void pci_set_msi_domain(struct pci_dev *dev) |