struct bus_type has a new callback for retrieving the IRQ affinity for a
device. Hook this callback up for PCI based devices.
Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx>
Signed-off-by: Daniel Wagner <wagi@xxxxxxxxxx>
---
drivers/pci/pci-driver.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 35270172c833186995aebdda6f95ab3ffd7c67a0..a9cb0e3ad2e6eca58c34683303b1242228e96909 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1670,6 +1670,19 @@ static void pci_dma_cleanup(struct device *dev)
iommu_device_unuse_default_domain(dev);
}
+/**
+ * pci_device_irq_get_affinity - get IRQ affinity mask for device
+ * @dev: ptr to dev structure
+ * @irq_vec: interrupt vector number
+ *
+ * Return the CPU affinity mask for @dev and @irq_vec.
+ */
+static const struct cpumask *pci_device_irq_get_affinity(struct device *dev,
+ unsigned int irq_vec)
+{
+ return pci_irq_get_affinity(to_pci_dev(dev), irq_vec);
+}
+
const struct bus_type pci_bus_type = {
.name = "pci",
.match = pci_bus_match,
@@ -1677,6 +1690,7 @@ const struct bus_type pci_bus_type = {
.probe = pci_device_probe,
.remove = pci_device_remove,
.shutdown = pci_device_shutdown,
+ .irq_get_affinity = pci_device_irq_get_affinity,
.dev_groups = pci_dev_groups,
.bus_groups = pci_bus_groups,
.drv_groups = pci_drv_groups,
--
2.47.0
