Merge /spare/repo/linux-2.6/

[cascardo/linux.git] / drivers / pci / quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index bb36bb6..11ca443 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -245,12 +245,19 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, unsi
 {
        region &= ~(size-1);
        if (region) {
+               struct pci_bus_region bus_region;
                struct resource *res = dev->resource + nr;
 
                res->name = pci_name(dev);
                res->start = region;
                res->end = region + size - 1;
                res->flags = IORESOURCE_IO;
+
+               /* Convert from PCI bus to resource space.  */
+               bus_region.start = res->start;
+               bus_region.end = res->end;
+               pcibios_bus_to_resource(dev, res, &bus_region);
+
                pci_claim_resource(dev, nr);
        }
 }      
@@ -421,6 +428,25 @@ static void __devinit quirk_via_ioapic(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,     PCI_DEVICE_ID_VIA_82C686,       quirk_via_ioapic );
 
+/*
+ * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
+ * This leads to doubled level interrupt rates.
+ * Set this bit to get rid of cycle wastage.
+ * Otherwise uncritical.
+ */
+static void __devinit quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
+{
+       u8 misc_control2;
+#define BYPASS_APIC_DEASSERT 8
+
+       pci_read_config_byte(dev, 0x5B, &misc_control2);
+       if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
+               printk(KERN_INFO "PCI: Bypassing VIA 8237 APIC De-Assert Message\n");
+               pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
+       }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,     PCI_DEVICE_ID_VIA_8237,         quirk_via_vt8237_bypass_apic_deassert);
+
 /*
  * The AMD io apic can hang the box when an apic irq is masked.
  * We check all revs >= B0 (yet not in the pre production!) as the bug
@@ -850,6 +876,12 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
                        case 0xC00C: /* Samsung P35 notebook */
                                asus_hides_smbus = 1;
                        }
+       } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
+               if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
+                       switch(dev->subsystem_device) {
+                       case 0x0058: /* Compaq Evo N620c */
+                               asus_hides_smbus = 1;
+                       }
        }
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82845_HB,   asus_hides_smbus_hostbridge );