diff options
| author | Scott Bauer <scott.bauer@intel.com> | 2017-08-11 23:54:32 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-08-14 20:56:46 +0300 |
| commit | e2b1820bd5d0962d6f271b0d47c3a0e38647df2f (patch) | |
| tree | 1d37bde20677aaed7d504319cdb3a93bedd7b08c /drivers/pci/host | |
| parent | f2586c678cb29f40a37c9c88a22b13d35484ffdc (diff) | |
| download | linux-e2b1820bd5d0962d6f271b0d47c3a0e38647df2f.tar.xz | |
PCI: vmd: Free up IRQs on suspend path
Free up the IRQs we request on the suspend path and reallocate them on the
resume path.
Fixes this error:
CPU 111 disable failed: CPU has 9 vectors assigned and there are only 0 available.
Error taking CPU111 down: -34
Non-boot CPUs are not disabled
Enabling non-boot CPUs ...
Signed-off-by: Scott Bauer <scott.bauer@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Diffstat (limited to 'drivers/pci/host')
| -rw-r--r-- | drivers/pci/host/vmd.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c index 7e967a8784b2..4fe1756af010 100644 --- a/drivers/pci/host/vmd.c +++ b/drivers/pci/host/vmd.c @@ -763,6 +763,11 @@ 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; @@ -771,6 +776,16 @@ 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; |