[Xen-changelog] Missing quirks.c file.

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 98b83cc57eca28c4beff7d76cf0ddf1cc6e2c9da
# Parent  ca90d2903b7b31506430cfb10653cad1c374bd74

Missing quirks.c file.

diff -r ca90d2903b7b -r 98b83cc57eca 
linux-2.6-xen-sparse/arch/xen/i386/kernel/quirks.c
--- /dev/null   Thu Jul 14 11:09:21 2005
+++ b/linux-2.6-xen-sparse/arch/xen/i386/kernel/quirks.c        Thu Jul 14 
14:01:21 2005
@@ -0,0 +1,49 @@
+/*
+ * This file contains work-arounds for x86 and x86_64 platform bugs.
+ */
+#include <linux/config.h>
+#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;
+
+       printk(KERN_INFO "Intel E7520/7320/7525 detected.");
+
+       /* enable access to config space*/
+       pci_read_config_byte(dev, 0xf4, &config);
+       config |= 0x2;
+       pci_write_config_byte(dev, 0xf4, config);
+
+       /* read xTPR register */
+       raw_pci_ops->read(0, 0, 0x40, 0x4c, 2, &word);
+
+       if (!(word & (1 << 13))) {
+               dom0_op_t op;
+               printk(KERN_INFO "Disabling irq balancing and affinity\n");
+               op.cmd = DOM0_PLATFORM_QUIRK;
+               op.u.platform_quirk.quirk_id = QUIRK_NOIRQBALANCING;
+               (void)HYPERVISOR_dom0_op(&op);
+       }
+
+       config &= ~0x2;
+       /* disable access to config space*/
+       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

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