[PATCH] x86: fix the irqbalance quirk for E7320/E7520/E7525
Move the irqbalance quirks for E7320/E7520/E7525(Errata 23 in
http://download.intel.com/design/chipsets/specupdt/30304203.pdf) to early
quirks.
And add a PCI quirk for these platforms to check(which happens very late
during the boot) if the APIC routing is indeed set to default flat mode.
This fixes the breakage(in x86_64) of this quirk due to cpu hotplug which
selects physical mode instead of the logical flat(as needed for this errata
workaround).
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: "Li, Shaohua" <shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
diff --git a/include/asm-i386/irq.h b/include/asm-i386/irq.h
index 9e15ce0..11761cd 100644
--- a/include/asm-i386/irq.h
+++ b/include/asm-i386/irq.h
@@ -37,6 +37,8 @@
extern int irqbalance_disable(char *str);
#endif
+extern void quirk_intel_irqbalance(void);
+
#ifdef CONFIG_HOTPLUG_CPU
extern void fixup_irqs(cpumask_t map);
#endif