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    Subject[PATCH 2/15] sched, x86: Provide initializer for MN scheduling domain, define MN level

    Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
    ---
    arch/x86/include/asm/topology.h | 25 +++++++++++++++++++++++++
    include/linux/sched.h | 1 +
    2 files changed, 26 insertions(+), 0 deletions(-)

    diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
    index d53ef91..6d7d133 100644
    --- a/arch/x86/include/asm/topology.h
    +++ b/arch/x86/include/asm/topology.h
    @@ -181,6 +181,31 @@ static inline void setup_node_to_cpumask_map(void) { }

    #endif

    +#ifdef CONFIG_SCHED_MN
    +/* Common values for multi-node siblings */
    +#ifndef SD_MN_INIT
    +#define SD_MN_INIT (struct sched_domain) { \
    + .min_interval = 1, \
    + .max_interval = 4, \
    + .busy_factor = 64, \
    + .imbalance_pct = 125, \
    + .cache_nice_tries = 1, \
    + .busy_idx = 2, \
    + .wake_idx = 1, \
    + .forkexec_idx = 1, \
    + .flags = SD_LOAD_BALANCE \
    + | SD_BALANCE_FORK \
    + | SD_BALANCE_EXEC \
    + | SD_WAKE_AFFINE \
    + | SD_WAKE_BALANCE \
    + | sd_balance_for_package_power()\
    + | sd_power_saving_flags(),\
    + .last_balance = jiffies, \
    + .balance_interval = 1, \
    +}
    +#endif
    +#endif /* CONFIG_SCHED_MN */
    +
    #include <asm-generic/topology.h>

    extern const struct cpumask *cpu_coregroup_mask(int cpu);
    diff --git a/include/linux/sched.h b/include/linux/sched.h
    index af1e328..3a1f8db 100644
    --- a/include/linux/sched.h
    +++ b/include/linux/sched.h
    @@ -901,6 +901,7 @@ enum sched_domain_level {
    SD_LV_NONE = 0,
    SD_LV_SIBLING,
    SD_LV_MC,
    + SD_LV_MN,
    SD_LV_CPU,
    SD_LV_NODE,
    SD_LV_ALLNODES,
    --
    1.6.0.4




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