diff options
Diffstat (limited to 'arch/i386/kernel/quirks.c')
| -rw-r--r-- | arch/i386/kernel/quirks.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/i386/kernel/quirks.c b/arch/i386/kernel/quirks.c deleted file mode 100644 index 6722469c263..00000000000 --- a/arch/i386/kernel/quirks.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * This file contains work-arounds for x86 and x86_64 platform bugs. - */ -#include <linux/pci.h> -#include <linux/irq.h> - -#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI) - -static void __devinit quirk_intel_irqbalance(struct pci_dev *dev) -{ - u8 config, rev; - u32 word; - - /* BIOS may enable hardware IRQ balancing for - * E7520/E7320/E7525(revision ID 0x9 and below) - * based platforms. - * Disable SW irqbalance/affinity on those platforms. - */ - pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev); - if (rev > 0x9) - return; - - /* enable access to config space*/ - pci_read_config_byte(dev, 0xf4, &config); - pci_write_config_byte(dev, 0xf4, config|0x2); - - /* read xTPR register */ - raw_pci_ops->read(0, 0, 0x40, 0x4c, 2, &word); - - if (!(word & (1 << 13))) { - printk(KERN_INFO "Intel E7520/7320/7525 detected. " - "Disabling irq balancing and affinity\n"); -#ifdef CONFIG_IRQBALANCE - irqbalance_disable(""); -#endif - noirqdebug_setup(""); -#ifdef CONFIG_PROC_FS - no_irq_affinity = 1; -#endif - } - - /* put back the original value for config space*/ - if (!(config & 0x2)) - pci_write_config_byte(dev, 0xf4, config); -} -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_intel_irqbalance); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_intel_irqbalance); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_intel_irqbalance); -#endif |