This patch frees up the IRQs we request on the suspend path,
and reallocates them on the resume path.
Fixes:
[ 559.964386] CPU 111 disable failed: CPU has 9 vectors assigned and there are only 0 available.
[ 559.966824] Error taking CPU111 down: -34
[ 559.966825] Non-boot CPUs are not disabled
[ 559.966826] Enabling non-boot CPUs ...
Signed-off-by: Scott Bauer <scott.bauer@xxxxxxxxx>
---
drivers/pci/host/vmd.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c
index 6088c3083194..88bf0c754fb2 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -755,6 +755,11 @@ static void vmd_remove(struct pci_dev *dev)
static int vmd_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
+ struct vmd_dev *vmd = pci_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < vmd->msix_count; i++)
+ devm_free_irq(dev, pci_irq_vector(pdev, i), &vmd->irqs[i]);
pci_save_state(pdev);
return 0;
@@ -763,7 +768,16 @@ static int vmd_suspend(struct device *dev)
static int vmd_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
+ struct vmd_dev *vmd = pci_get_drvdata(pdev);
+ int err, i;
+ for (i = 0; i < vmd->msix_count; i++) {
+ err = devm_request_irq(dev, pci_irq_vector(pdev, i),
+ vmd_irq, IRQF_NO_THREAD,
+ "vmd", &vmd->irqs[i]);
+ if (err)
+ return err;
+ }
pci_restore_state(pdev);
return 0;
}
--
2.11.0
