x86, x2apic: Track the x2apic cluster sibling map

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In the case of x2apic cluster mode, we can group IPI register
writes based on the cluster group instead of individual per-cpu
destination messages.

For this purpose, track the cpu's that belong to the same x2apic
cluster.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: steiner@sgi.com
Cc: yinghai@kernel.org
Link: http://lkml.kernel.org/r/20110519234637.421800999@sbsiddha-MOBL3.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

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Cyrill Gorcunov 2011-05-19 16:45:48 -07:00 • committed by Ingo Molnar

parent a27d0b5e7d

commit a39d1f3f67

1 changed files with 70 additions and 2 deletions

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arch/x86/kernel/apic/x2apic_cluster.c

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