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Merge branches 'stable/irq.rework' and 'stable/pcifront-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

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* 'stable/irq.rework' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/irq: Cleanup up the pirq_to_irq for DomU PV PCI passthrough guests as well.
  xen: Use IRQF_FORCE_RESUME
  xen/timer: Missing IRQF_NO_SUSPEND in timer code broke suspend.
  xen: Fix compile error introduced by "switch to new irq_chip functions"
  xen: Switch to new irq_chip functions
  xen: Remove stale irq_chip.end
  xen: events: do not free legacy IRQs
  xen: events: allocate GSIs and dynamic IRQs from separate IRQ ranges.
  xen: events: add xen_allocate_irq_{dynamic, gsi} and xen_free_irq
  xen:events: move find_unbound_irq inside CONFIG_PCI_MSI
  xen: handled remapped IRQs when enabling a pcifront PCI device.
  genirq: Add IRQF_FORCE_RESUME

* 'stable/pcifront-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  pci/xen: When free-ing MSI-X/MSI irq->desc also use generic code.
  pci/xen: Cleanup: convert int** to int[]
  pci/xen: Use xen_allocate_pirq_msi instead of xen_allocate_pirq
  xen-pcifront: Sanity check the MSI/MSI-X values
  xen-pcifront: don't use flush_scheduled_work()
This commit is contained in:
Linus Torvalds
2011-03-15 10:47:16 -07:00
parent c7146dd009 1aa0b51a03 3d74a539ae
commit 397fae0818
8 changed files with 196 additions and 197 deletions
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41
arch/x86/pci/xen.c
View File

@@ -150,21 +150,21 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
return -ENOMEM;
if (type == PCI_CAP_ID_MSIX)
ret = xen_pci_frontend_enable_msix(dev, &v, nvec);
ret = xen_pci_frontend_enable_msix(dev, v, nvec);
else
ret = xen_pci_frontend_enable_msi(dev, &v);
ret = xen_pci_frontend_enable_msi(dev, v);
if (ret)
goto error;
i = 0;
list_for_each_entry(msidesc, &dev->msi_list, list) {
irq = xen_allocate_pirq(v[i], 0, /* not sharable */
xen_allocate_pirq_msi(
(type == PCI_CAP_ID_MSIX) ?
"pcifront-msi-x" : "pcifront-msi");
"pcifront-msi-x" : "pcifront-msi",
&irq, &v[i], XEN_ALLOC_IRQ);
if (irq < 0) {
ret = -1;
goto free;
}
ret = set_irq_msi(irq, msidesc);
if (ret)
goto error_while;
@@ -193,6 +193,9 @@ static void xen_teardown_msi_irqs(struct pci_dev *dev)
xen_pci_frontend_disable_msix(dev);
else
xen_pci_frontend_disable_msi(dev);
/* Free the IRQ's and the msidesc using the generic code. */
default_teardown_msi_irqs(dev);
}
static void xen_teardown_msi_irq(unsigned int irq)
@@ -226,21 +229,27 @@ static int xen_pcifront_enable_irq(struct pci_dev *dev)
{
int rc;
int share = 1;
u8 gsi;
dev_info(&dev->dev, "Xen PCI enabling IRQ: %d\n", dev->irq);
if (dev->irq < 0)
return -EINVAL;
if (dev->irq < NR_IRQS_LEGACY)
share = 0;
rc = xen_allocate_pirq(dev->irq, share, "pcifront");
rc = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &gsi);
if (rc < 0) {
dev_warn(&dev->dev, "Xen PCI IRQ: %d, failed to register:%d\n",
dev->irq, rc);
dev_warn(&dev->dev, "Xen PCI: failed to read interrupt line: %d\n",
rc);
return rc;
}
if (gsi < NR_IRQS_LEGACY)
share = 0;
rc = xen_allocate_pirq(gsi, share, "pcifront");
if (rc < 0) {
dev_warn(&dev->dev, "Xen PCI: failed to register GSI%d: %d\n",
gsi, rc);
return rc;
}
dev->irq = rc;
dev_info(&dev->dev, "Xen PCI mapped GSI%d to IRQ%d\n", gsi, dev->irq);
return 0;
}