Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / arch / x86 / pci / irq.c

diff --git a/kernel/arch/x86/pci/irq.c b/kernel/arch/x86/pci/irq.c
index 32e7034..9bd1154 100644 (file)
--- a/kernel/arch/x86/pci/irq.c
+++ b/kernel/arch/x86/pci/irq.c
@@ -1202,7 +1202,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
                        struct pci_dev *temp_dev;
                        int irq;
 
-                       if (pci_has_managed_irq(dev))
+                       if (dev->irq_managed && dev->irq > 0)
                                return 0;
 
                        irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
@@ -1230,7 +1230,8 @@ static int pirq_enable_irq(struct pci_dev *dev)
                        }
                        dev = temp_dev;
                        if (irq >= 0) {
-                               pci_set_managed_irq(dev, irq);
+                               dev->irq_managed = 1;
+                               dev->irq = irq;
                                dev_info(&dev->dev, "PCI->APIC IRQ transform: "
                                         "INT %c -> IRQ %d\n", 'A' + pin - 1, irq);
                                return 0;
@@ -1256,10 +1257,24 @@ static int pirq_enable_irq(struct pci_dev *dev)
        return 0;
 }
 
+bool mp_should_keep_irq(struct device *dev)
+{
+       if (dev->power.is_prepared)
+               return true;
+#ifdef CONFIG_PM
+       if (dev->power.runtime_status == RPM_SUSPENDING)
+               return true;
+#endif
+
+       return false;
+}
+
 static void pirq_disable_irq(struct pci_dev *dev)
 {
-       if (io_apic_assign_pci_irqs && pci_has_managed_irq(dev)) {
+       if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) &&
+           dev->irq_managed && dev->irq) {
                mp_unmap_irq(dev->irq);
-               pci_reset_managed_irq(dev);
+               dev->irq = 0;
+               dev->irq_managed = 0;
        }
 }