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Subject[PATCH 02/11] ACPI, APEI, GHES: Add PCIe AER recovery support
Date
aer_recover_queue() is called when recoverable PCIe AER errors are
notified by firmware to do the recovery work.

Signed-off-by: Huang Ying <ying.huang@intel.com>
---
drivers/acpi/apei/ghes.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -45,6 +45,8 @@
#include <linux/irq_work.h>
#include <linux/llist.h>
#include <linux/genalloc.h>
+#include <linux/pci.h>
+#include <linux/aer.h>
#include <acpi/apei.h>
#include <acpi/atomicio.h>
#include <acpi/hed.h>
@@ -476,6 +478,27 @@ static void ghes_do_proc(const struct ac
}
#endif
}
+#ifdef CONFIG_ACPI_APEI_PCIEAER
+ else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
+ CPER_SEC_PCIE)) {
+ struct cper_sec_pcie *pcie_err;
+ pcie_err = (struct cper_sec_pcie *)(gdata+1);
+ if (sev == GHES_SEV_RECOVERABLE &&
+ sec_sev == GHES_SEV_RECOVERABLE &&
+ pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
+ pcie_err->validation_bits & CPER_PCIE_VALID_AER_INFO) {
+ unsigned int devfn;
+ int aer_severity;
+ devfn = PCI_DEVFN(pcie_err->device_id.device,
+ pcie_err->device_id.function);
+ aer_severity = cper_severity_to_aer(sev);
+ aer_recover_queue(pcie_err->device_id.segment,
+ pcie_err->device_id.bus,
+ devfn, aer_severity);
+ }
+
+ }
+#endif
}
}


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