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 <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
rtvt123 · Jan 11, 2011 · 990a32d · 990a32d
1 parent 24d9b70
commit 990a32d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -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);
 }
 
 /*