Messages in this thread | | | Date | Thu, 11 Nov 2010 13:37:10 +0200 | Subject | Re: [PATCH 5/9] x86: Replace apic->apicid_to_node() with ->numa_cpu_node() | From | Pekka Enberg <> |
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On Thu, Nov 11, 2010 at 1:02 PM, Tejun Heo <tj@kernel.org> wrote: > apic->apicid_to_node() is 32bit specific apic operation which > determines NUMA node for a CPU. Depending on the APIC implementation, > it can be easier to determine NUMA node from either physical or > logical apicid. Currently, ->apicid_to_node() takes @logical_apicid > and calls hard_smp_processor_id() if the physical apicid is needed. > > This prevents NUMA mapping from being queried from a different CPU, > which in turn makes it impossible to initialize NUMA mapping before > SMP bringup. > > This patch replaces apic->apicid_to_node() with ->numa_cpu_node() > which takes @cpu, from which both logical and physical apicids can > easily be determined. While at it, drop duplicate implementations > from bigsmp_32 and summit_32, and use the default. > > Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Pekka Enberg <penberg@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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