diff options
| -rw-r--r-- | core/pci.c | 15 | ||||
| -rw-r--r-- | include/pci.h | 2 |
2 files changed, 12 insertions, 5 deletions
@@ -307,10 +307,12 @@ static struct pci_device *pci_scan_one(struct phb *phb, struct pci_device *paren * everything (default state of our backend) so * we just check and clear the state of PE#0 * + * returns true if a freeze was detected + * * NOTE: We currently only handle simple PE freeze, not PHB fencing * (or rather our backend does) */ -static void pci_check_clear_freeze(struct phb *phb) +bool pci_check_clear_freeze(struct phb *phb) { uint8_t freeze_state; uint16_t pci_error_type, sev; @@ -321,23 +323,26 @@ static void pci_check_clear_freeze(struct phb *phb) if (phb->ops->get_reserved_pe_number) pe_number = phb->ops->get_reserved_pe_number(phb); if (pe_number < 0) - return; + return false; /* Retrieve the frozen state */ rc = phb->ops->eeh_freeze_status(phb, pe_number, &freeze_state, &pci_error_type, &sev); if (rc) - return; + return true; /* phb fence? */ + if (freeze_state == OPAL_EEH_STOPPED_NOT_FROZEN) - return; + return false; /* We can't handle anything worse than an ER here */ if (sev > OPAL_EEH_SEV_NO_ERROR && sev < OPAL_EEH_SEV_PE_ER) { PCIERR(phb, 0, "Fatal probe in %s error !\n", __func__); - return; + return true; } + phb->ops->eeh_freeze_clear(phb, pe_number, OPAL_EEH_ACTION_CLEAR_FREEZE_ALL); + return true; } /* diff --git a/include/pci.h b/include/pci.h index b840409..18deb2f 100644 --- a/include/pci.h +++ b/include/pci.h @@ -392,6 +392,8 @@ static inline void phb_unlock(struct phb *phb) unlock(&phb->lock); } +bool pci_check_clear_freeze(struct phb *phb); + /* Config space ops wrappers */ static inline int64_t pci_cfg_read8(struct phb *phb, uint32_t bdfn, uint32_t offset, uint8_t *data) |