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Subject[PATCH] x86, UV: Fix APICID shift for westmere processors
Westmere processors use a different algorithm for
assigning APICIDs on SGI UV systems. The location of the
node number within the apicid is now a function of the
processor type.

Signed-off-by: Jack Steiner <steiner@sgi.com>

---
arch/x86/kernel/apic/x2apic_uv_x.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/arch/x86/kernel/apic/x2apic_uv_x.c
===================================================================
--- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c 2010-12-31 10:53:26.878105424 -0600
+++ linux/arch/x86/kernel/apic/x2apic_uv_x.c 2010-12-31 10:54:45.291099878 -0600
@@ -378,7 +378,7 @@ struct apic __refdata apic_x2apic_uv_x =

static __cpuinit void set_x2apic_extra_bits(int pnode)
{
- __get_cpu_var(x2apic_extra_bits) = (pnode << 6);
+ __get_cpu_var(x2apic_extra_bits) = (pnode << uvh_apicid.s.pnode_shift);
}

/*

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