diff options
| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-06-10 16:54:59 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-07-30 14:05:57 -0500 |
| commit | 991de2e59090e55c65a7f59a049142e3c480f7bd (patch) | |
| tree | b6b31c900abc49312c0306b4a0d596d74a22f71c /arch/x86/pci/intel_mid_pci.c | |
| parent | 890e4847587fcff5eb0438e90992ad7d2a261f33 (diff) | |
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/intel_mid_pci.c')
| -rw-r--r-- | arch/x86/pci/intel_mid_pci.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 27062303c881..fb7a1f96d80c 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -234,10 +234,13 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) static void intel_mid_pci_irq_disable(struct pci_dev *dev) { - if (!mp_should_keep_irq(&dev->dev) && dev->irq_managed && - dev->irq > 0) { + if (dev->irq_managed && dev->irq > 0) { mp_unmap_irq(dev->irq); dev->irq_managed = 0; + /* + * Don't reset dev->irq here, otherwise + * intel_mid_pci_irq_enable() will fail on next call. + */ } } |