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PCI/AER: Save AER Capability for suspend/resume

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Previously we did not save and restore the AER configuration on
suspend/resume, so the configuration may be lost after resume.

Save the AER configuration during suspend and restore it during resume.

[bhelgaas: commit log]
Link: https://lore.kernel.org/r/92EBB4272BF81E4089A7126EC1E7B28492C3B007@IRSMSX101.ger.corp.intel.com
Signed-off-by: Mayurkumar Patel <mayurkumar.patel@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Patel, Mayurkumar
2019-10-18 16:52:21 +00:00
committed by Bjorn Helgaas
parent 54ecb8f702
commit af65d1ad41
5 changed files with 69 additions and 4 deletions
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4
include/linux/aer.h
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@@ -46,6 +46,8 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev);
int pci_disable_pcie_error_reporting(struct pci_dev *dev);
int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
int pci_cleanup_aer_error_status_regs(struct pci_dev *dev);
void pci_save_aer_state(struct pci_dev *dev);
void pci_restore_aer_state(struct pci_dev *dev);
#else
static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
{
@@ -63,6 +65,8 @@ static inline int pci_cleanup_aer_error_status_regs(struct pci_dev *dev)
{
return -EINVAL;
}
static inline void pci_save_aer_state(struct pci_dev *dev) {}
static inline void pci_restore_aer_state(struct pci_dev *dev) {}
#endif
void cper_print_aer(struct pci_dev *dev, int aer_severity,