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    Subject[RFC PATCH v2 6/6] drivers: base: arch_topology.c: Enable EAS for arm/arm64 platforms
    Date
    From: Quentin Perret <quentin.perret@arm.com>

    Energy Aware Scheduling (EAS) has to be started from the arch code.
    This commit enables it from the arch topology driver for arm/arm64
    systems, hence enabling a better support for Arm big.LITTLE and future
    DynamIQ architectures.

    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Signed-off-by: Quentin Perret <quentin.perret@arm.com>
    Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
    ---
    drivers/base/arch_topology.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
    index 52ec5174bcb1..25a70c21860f 100644
    --- a/drivers/base/arch_topology.c
    +++ b/drivers/base/arch_topology.c
    @@ -15,6 +15,7 @@
    #include <linux/slab.h>
    #include <linux/string.h>
    #include <linux/sched/topology.h>
    +#include <linux/sched/energy.h>

    DEFINE_PER_CPU(unsigned long, freq_scale) = SCHED_CAPACITY_SCALE;

    @@ -247,6 +248,7 @@ static void __init parsing_done_workfn(struct work_struct *work)
    cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
    CPUFREQ_POLICY_NOTIFIER);
    free_cpumask_var(cpus_to_visit);
    + init_sched_energy();
    }

    #else
    --
    2.11.0
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