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Subject[PATCH] [1/35] i386: revert i386-fix-the-verify_quirk_intel_irqbalance
Date

From: Andrew Morton <akpm@osdl.org>

This is unneeded with Ingo's genapic rework.

Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>

---
arch/i386/kernel/quirks.c | 33 ++++-----------------------------
1 file changed, 4 insertions(+), 29 deletions(-)
Index: linux/arch/i386/kernel/quirks.c
===================================================================
--- linux.orig/arch/i386/kernel/quirks.c
+++ linux/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)
-
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