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authorJiang Liu <jiang.liu@linux.intel.com>2015-06-10 08:54:59 (GMT)
committerBjorn Helgaas <bhelgaas@google.com>2015-07-30 19:05:57 (GMT)
commit991de2e59090e55c65a7f59a049142e3c480f7bd (patch)
treeb6b31c900abc49312c0306b4a0d596d74a22f71c /arch/x86/pci/irq.c
parent890e4847587fcff5eb0438e90992ad7d2a261f33 (diff)
downloadlinux-991de2e59090e55c65a7f59a049142e3c480f7bd.tar.xz
PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()
To support IOAPIC hotplug, we need to allocate PCI IRQ resources on demand and free them when not used anymore. Implement pcibios_alloc_irq() and pcibios_free_irq() to dynamically allocate and free PCI IRQs. Remove mp_should_keep_irq(), which is no longer used. [bhelgaas: changelog] Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/pci/irq.c')
-rw-r--r--arch/x86/pci/irq.c15
1 files changed, 1 insertions, 14 deletions
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 9bd1154..72108f0 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1257,22 +1257,9 @@ 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 && !mp_should_keep_irq(&dev->dev) &&
- dev->irq_managed && dev->irq) {
+ if (io_apic_assign_pci_irqs && dev->irq_managed && dev->irq) {
mp_unmap_irq(dev->irq);
dev->irq = 0;
dev->irq_managed = 0;