diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2017-09-07 20:24:09 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-09-07 20:24:09 +0200 |
| commit | e9e256dff423e0d23b4d45ef925a3d203cfd0994 (patch) | |
| tree | dcfc1e45d7c589a9547e74faef582896affc2443 /drivers/pci/host | |
| parent | Merge branch 'pci/host-tegra' into next (diff) | |
| parent | iommu/vt-d: Prevent VMD child devices from being remapping targets (diff) | |
| download | linux-e9e256dff423e0d23b4d45ef925a3d203cfd0994.tar.xz linux-e9e256dff423e0d23b4d45ef925a3d203cfd0994.zip | |
Merge branch 'pci/host-vmd' into next
* pci/host-vmd:
iommu/vt-d: Prevent VMD child devices from being remapping targets
x86/PCI: Use is_vmd() rather than relying on the domain number
x86/PCI: Move VMD quirk to x86 fixups
MAINTAINERS: Add Jonathan Derrick as VMD maintainer
PCI: vmd: Remove IRQ affinity so we can allocate more IRQs
PCI: vmd: Free up IRQs on suspend path
PCI: vmd: Assign vector zero to all bridges
PCI: vmd: Reserve IRQ pre-vector for better affinity
Diffstat (limited to 'drivers/pci/host')
| -rw-r--r-- | drivers/pci/host/vmd.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c index 6088c3083194..509893bc3e63 100644 --- a/drivers/pci/host/vmd.c +++ b/drivers/pci/host/vmd.c @@ -183,7 +183,7 @@ static struct vmd_irq_list *vmd_next_irq(struct vmd_dev *vmd, struct msi_desc *d int i, best = 1; unsigned long flags; - if (!desc->msi_attrib.is_msix || vmd->msix_count == 1) + if (pci_is_bridge(msi_desc_to_pci_dev(desc)) || vmd->msix_count == 1) return &vmd->irqs[0]; raw_spin_lock_irqsave(&list_lock, flags); @@ -697,7 +697,7 @@ static int vmd_probe(struct pci_dev *dev, const struct pci_device_id *id) return -ENODEV; vmd->msix_count = pci_alloc_irq_vectors(dev, 1, vmd->msix_count, - PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); + PCI_IRQ_MSIX); if (vmd->msix_count < 0) return vmd->msix_count; @@ -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; @@ -763,6 +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; |