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    Subject[PATCH] x86, topology: Swap semantic of core_siblings and cpu_node_siblings
    Brice Goglin suggested to use the following semantic for
    CPU topology information

    Level | Set of CPUs
    phys_package | cpu_node_siblings
    cpu_node | core_siblings
    core | thread_siblings
    thread | one CPU

    Done that.

    CC: Brice Goglin <>
    Signed-off-by: Andreas Herrmann <>
    arch/x86/include/asm/topology.h | 4 ++--
    1 files changed, 2 insertions(+), 2 deletions(-)

    Patch is on top of the 5 previous patches.
    Documentation update will follow.


    diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
    index 9eddb69..d53ef91 100644
    --- a/arch/x86/include/asm/topology.h
    +++ b/arch/x86/include/asm/topology.h
    @@ -188,10 +188,10 @@ extern const struct cpumask *cpu_coregroup_mask(int cpu);
    #define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id)
    #define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
    -#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
    +#define topology_core_cpumask(cpu) (per_cpu(cpu_node_map, cpu))
    #define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
    #define topology_cpu_node_id(cpu) (cpu_data(cpu).cpu_node_id)
    -#define topology_cpu_node_cpumask(cpu) (per_cpu(cpu_node_map, cpu))
    +#define topology_cpu_node_cpumask(cpu) (per_cpu(cpu_core_map, cpu))

    /* indicates that pointers to the topology cpumask_t maps are valid */
    #define arch_provides_topology_pointers yes

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      Last update: 2009-08-06 19:33    [W:0.022 / U:4.924 seconds]
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