diff options
Diffstat (limited to 'drivers/pci')
-rw-r--r-- | drivers/pci/ats.c | 33 | ||||
-rw-r--r-- | drivers/pci/hotplug/cpqphp_ctrl.c | 2 | ||||
-rw-r--r-- | drivers/pci/hotplug/shpchp_hpc.c | 2 |
3 files changed, 35 insertions, 2 deletions
diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c index c6b266c772c8..ec6c8dbdc5e9 100644 --- a/drivers/pci/ats.c +++ b/drivers/pci/ats.c @@ -538,4 +538,37 @@ int pci_max_pasids(struct pci_dev *pdev) return (1 << FIELD_GET(PCI_PASID_CAP_WIDTH, supported)); } EXPORT_SYMBOL_GPL(pci_max_pasids); + +/** + * pci_pasid_status - Check the PASID status + * @pdev: PCI device structure + * + * Returns a negative value when no PASID capability is present. + * Otherwise the value of the control register is returned. + * Status reported are: + * + * PCI_PASID_CTRL_ENABLE - PASID enabled + * PCI_PASID_CTRL_EXEC - Execute permission enabled + * PCI_PASID_CTRL_PRIV - Privileged mode enabled + */ +int pci_pasid_status(struct pci_dev *pdev) +{ + int pasid; + u16 ctrl; + + if (pdev->is_virtfn) + pdev = pci_physfn(pdev); + + pasid = pdev->pasid_cap; + if (!pasid) + return -EINVAL; + + pci_read_config_word(pdev, pasid + PCI_PASID_CTRL, &ctrl); + + ctrl &= PCI_PASID_CTRL_ENABLE | PCI_PASID_CTRL_EXEC | + PCI_PASID_CTRL_PRIV; + + return ctrl; +} +EXPORT_SYMBOL_GPL(pci_pasid_status); #endif /* CONFIG_PCI_PASID */ diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c index c01968ef0bd7..20529d1a3c44 100644 --- a/drivers/pci/hotplug/cpqphp_ctrl.c +++ b/drivers/pci/hotplug/cpqphp_ctrl.c @@ -1794,7 +1794,7 @@ static void interrupt_event_handler(struct controller *ctrl) } else if (ctrl->event_queue[loop].event_type == INT_BUTTON_CANCEL) { dbg("button cancel\n"); - del_timer(&p_slot->task_event); + timer_delete(&p_slot->task_event); mutex_lock(&ctrl->crit_sect); diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index bfbec7c1a6b1..387b85585263 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -564,7 +564,7 @@ void shpchp_release_ctlr(struct controller *ctrl) shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int); if (shpchp_poll_mode) - del_timer(&ctrl->poll_timer); + timer_delete(&ctrl->poll_timer); else { free_irq(ctrl->pci_dev->irq, ctrl); pci_disable_msi(ctrl->pci_dev); |