diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 64b308b6e61c..3d2c1ac645ff 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1783,6 +1783,26 @@ void pci_free_irq_vectors(struct pci_dev *dev); int pci_irq_vector(struct pci_dev *dev, unsigned int nr); const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, int vec); +/** + * pci_irq_type - Get the interrupt type of a PCI device + * @pdev: the PCI device to operate on + * + * Discriminate the interrupt type the PCI core selected for this device + * after a successful pci_alloc_irq_vectors() call. + * + * Return: %PCI_IRQ_MSIX, %PCI_IRQ_MSI, or %PCI_IRQ_INTX. + */ +static inline unsigned int pci_irq_type(struct pci_dev *pdev) +{ + if (pdev->msix_enabled) + return PCI_IRQ_MSIX; + + if (pdev->msi_enabled) + return PCI_IRQ_MSI; + + return PCI_IRQ_INTX; +} + #else static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; } static inline void pci_disable_msi(struct pci_dev *dev) { } @@ -1845,6 +1865,11 @@ static inline const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, { return cpu_possible_mask; } + +static inline unsigned int pci_irq_type(struct pci_dev *pdev) +{ + return PCI_IRQ_INTX; +} #endif /** @@ -2255,6 +2280,11 @@ static inline bool pci_suspend_retains_context(struct pci_dev *pdev) { return true; } + +static inline unsigned int pci_irq_type(struct pci_dev *pdev) +{ + return 0; +} #endif /* CONFIG_PCI */ /* Include architecture-dependent settings and functions */ |