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    Subject[PATCH 1/8] topology: Introduce cpu_node information for multi-node processors
    This includes
    - cpu_node_id (id of the internal node)
    - cpu_node_siblings and cpu_node_siblings_list
    (siblings on the same internal node)

    Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
    ---
    drivers/base/topology.c | 10 ++++++++++
    include/linux/topology.h | 9 +++++++++
    2 files changed, 19 insertions(+), 0 deletions(-)

    diff --git a/drivers/base/topology.c b/drivers/base/topology.c
    index bf6b132..1e35a43 100644
    --- a/drivers/base/topology.c
    +++ b/drivers/base/topology.c
    @@ -103,6 +103,9 @@ static ssize_t show_##name##_list(struct sys_device *dev, \
    define_id_show_func(physical_package_id);
    define_one_ro(physical_package_id);

    +define_id_show_func(cpu_node_id);
    +define_one_ro(cpu_node_id);
    +
    define_id_show_func(core_id);
    define_one_ro(core_id);

    @@ -110,6 +113,10 @@ define_siblings_show_func(thread_cpumask);
    define_one_ro_named(thread_siblings, show_thread_cpumask);
    define_one_ro_named(thread_siblings_list, show_thread_cpumask_list);

    +define_siblings_show_func(cpu_node_cpumask);
    +define_one_ro_named(cpu_node_siblings, show_cpu_node_cpumask);
    +define_one_ro_named(cpu_node_siblings_list, show_cpu_node_cpumask_list);
    +
    define_siblings_show_func(core_cpumask);
    define_one_ro_named(core_siblings, show_core_cpumask);
    define_one_ro_named(core_siblings_list, show_core_cpumask_list);
    @@ -119,6 +126,9 @@ static struct attribute *default_attrs[] = {
    &attr_core_id.attr,
    &attr_thread_siblings.attr,
    &attr_thread_siblings_list.attr,
    + &attr_cpu_node_id.attr,
    + &attr_cpu_node_siblings.attr,
    + &attr_cpu_node_siblings_list.attr,
    &attr_core_siblings.attr,
    &attr_core_siblings_list.attr,
    NULL
    diff --git a/include/linux/topology.h b/include/linux/topology.h
    index 7402c1a..976a130 100644
    --- a/include/linux/topology.h
    +++ b/include/linux/topology.h
    @@ -180,6 +180,9 @@ int arch_update_cpu_topology(void);
    #ifndef topology_physical_package_id
    #define topology_physical_package_id(cpu) ((void)(cpu), -1)
    #endif
    +#ifndef topology_cpu_node_id
    +#define topology_cpu_node_id(cpu) ((void)(cpu), 0)
    +#endif
    #ifndef topology_core_id
    #define topology_core_id(cpu) ((void)(cpu), 0)
    #endif
    @@ -189,12 +192,18 @@ int arch_update_cpu_topology(void);
    #ifndef topology_core_siblings
    #define topology_core_siblings(cpu) cpumask_of_cpu(cpu)
    #endif
    +#ifndef topology_cpu_node_siblings
    +#define topology_cpu_node_siblings(cpu) topology_core_siblings(cpu)
    +#endif
    #ifndef topology_thread_cpumask
    #define topology_thread_cpumask(cpu) cpumask_of(cpu)
    #endif
    #ifndef topology_core_cpumask
    #define topology_core_cpumask(cpu) cpumask_of(cpu)
    #endif
    +#ifndef topology_cpu_node_cpumask
    +#define topology_cpu_node_cpumask(cpu) topology_core_cpumask(cpu)
    +#endif

    /* Returns the number of the current Node. */
    #ifndef numa_node_id
    --
    1.6.3.3




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