diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/fair.c | 13 | ||||
| -rw-r--r-- | kernel/sched/features.h | 8 |
2 files changed, 21 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 6b12c89315f6..8000639568c9 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6487,6 +6487,19 @@ unsigned long capacity_curr_of(int cpu) #define EAS_CPU_CNT 3 /* + * Returns the current capacity of cpu after applying both + * cpu and min freq scaling. + */ +unsigned long capacity_min_of(int cpu) +{ + if (!sched_feat(MIN_CAPACITY_CAPPING)) + return 0; + return arch_scale_cpu_capacity(NULL, cpu) * + arch_scale_min_freq_capacity(NULL, cpu) + >> SCHED_CAPACITY_SHIFT; +} + +/* * energy_diff - supports the computation of the estimated energy impact in * moving a "task"'s "util_delta" between different CPU candidates. */ diff --git a/kernel/sched/features.h b/kernel/sched/features.h index c30c48fde7e6..3ad94cb2b4bf 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -78,3 +78,11 @@ SCHED_FEAT(ENERGY_AWARE, true) #else SCHED_FEAT(ENERGY_AWARE, false) #endif + +/* + * Minimum capacity capping. Keep track of minimum capacity factor when + * minimum frequency available to a policy is modified. + * If enabled, this can be used to inform the scheduler about capacity + * restrictions. + */ +SCHED_FEAT(MIN_CAPACITY_CAPPING, false) |