diff options
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index eb97564316d..ac634ae2eb0 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1365,6 +1365,34 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); #ifdef CONFIG_X86_IO_APIC /* + * Boot interrupts on some chipsets cannot be turned off. For these chipsets, + * remap the original interrupt in the linux kernel to the boot interrupt, so + * that a PCI device's interrupt handler is installed on the boot interrupt + * line instead. + */ +static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev) +{ + int i; + + if (noioapicquirk) + return; + + dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT; + + printk(KERN_INFO "PCI quirk: reroute interrupts for 0x%04x:0x%04x\n", + dev->vendor, dev->device); + return; +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); + +/* * On some chipsets we can disable the generation of legacy INTx boot * interrupts. */ |