[PATCH] i386: revert i386-fix-the-verify_quirk_intel_irqbalance

[powerpc.git] / arch / i386 / kernel / quirks.c

diff --git a/arch/i386/kernel/quirks.c b/arch/i386/kernel/quirks.c
index 34874c3..a01320a 100644 (file)
--- a/arch/i386/kernel/quirks.c
+++ b/arch/i386/kernel/quirks.c
@@ -10,38 +10,13 @@
 #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
 static void __devinit verify_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.
-        * For those platforms, make sure that the genapic is set to 'flat'
-        */
-       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))) {
 #ifdef CONFIG_X86_64
-               if (genapic !=  &apic_flat)
-                       panic("APIC mode must be flat on this system\n");
+       if (genapic !=  &apic_flat)
+               panic("APIC mode must be flat on this system\n");
 #elif defined(CONFIG_X86_GENERICARCH)
-               if (genapic != &apic_default)
-                       panic("APIC mode must be default(flat) on this system. Use apic=default\n");
+       if (genapic != &apic_default)
+               panic("APIC mode must be default(flat) on this system. Use apic=default\n");
 #endif
-       }
-
-       /* put back the original value for config space*/
-       if (!(config & 0x2))
-               pci_write_config_byte(dev, 0xf4, config);
 }
 
 void __init quirk_intel_irqbalance(void)