diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/pci.c | 18 |
1 files changed, 17 insertions, 1 deletions
@@ -501,6 +501,7 @@ void pci_remove_bus(struct phb *phb, struct list_head *list) static void pci_slot_power_off(struct phb *phb, struct pci_device *pd) { struct pci_slot *slot; + uint8_t pstate; int32_t wait = 100; int64_t rc; @@ -508,7 +509,9 @@ static void pci_slot_power_off(struct phb *phb, struct pci_device *pd) return; slot = pd->slot; - if (!slot->pluggable || !slot->ops.set_power_state) + if (!slot->pluggable || + !slot->ops.get_power_state || + !slot->ops.set_power_state) return; /* Bail if there're something connected */ @@ -516,11 +519,23 @@ static void pci_slot_power_off(struct phb *phb, struct pci_device *pd) return; pci_slot_add_flags(slot, PCI_SLOT_FLAG_BOOTUP); + rc = slot->ops.get_power_state(slot, &pstate); + if (rc != OPAL_SUCCESS) { + pci_slot_remove_flags(slot, PCI_SLOT_FLAG_BOOTUP); + PCINOTICE(phb, pd->bdfn, "Error %lld getting slot power state\n", rc); + return; + } else if (pstate == PCI_SLOT_POWER_OFF) { + pci_slot_remove_flags(slot, PCI_SLOT_FLAG_BOOTUP); + return; + } + rc = slot->ops.set_power_state(slot, PCI_SLOT_POWER_OFF); if (rc == OPAL_SUCCESS) { + pci_slot_remove_flags(slot, PCI_SLOT_FLAG_BOOTUP); PCIDBG(phb, pd->bdfn, "Power off hotpluggable slot\n"); return; } else if (rc != OPAL_ASYNC_COMPLETION) { + pci_slot_remove_flags(slot, PCI_SLOT_FLAG_BOOTUP); pci_slot_set_state(slot, PCI_SLOT_STATE_NORMAL); PCINOTICE(phb, pd->bdfn, "Error %lld powering off slot\n", rc); return; @@ -534,6 +549,7 @@ static void pci_slot_power_off(struct phb *phb, struct pci_device *pd) time_wait_ms(10); } while (--wait >= 0); + pci_slot_remove_flags(slot, PCI_SLOT_FLAG_BOOTUP); pci_slot_set_state(slot, PCI_SLOT_STATE_NORMAL); if (wait >= 0) PCIDBG(phb, pd->bdfn, "Power off hotpluggable slot\n"); |