diff options
Diffstat (limited to 'kernel/sched/core.c')
-rw-r--r-- | kernel/sched/core.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index b4308d7da33..277e3557d0e 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1623,6 +1623,20 @@ static void __sched_fork(struct task_struct *p) #if defined(CONFIG_SMP) && defined(CONFIG_FAIR_GROUP_SCHED) p->se.avg.runnable_avg_period = 0; p->se.avg.runnable_avg_sum = 0; +#ifdef CONFIG_SCHED_HMP + /* keep LOAD_AVG_MAX in sync with fair.c if load avg series is changed */ +#define LOAD_AVG_MAX 47742 + if (p->mm) { + p->se.avg.hmp_last_up_migration = 0; + p->se.avg.hmp_last_down_migration = 0; + p->se.avg.load_avg_ratio = 1023; + p->se.avg.load_avg_contrib = + (1023 * scale_load_down(p->se.load.weight)); + p->se.avg.runnable_avg_period = LOAD_AVG_MAX; + p->se.avg.runnable_avg_sum = LOAD_AVG_MAX; + p->se.avg.usage_avg_sum = LOAD_AVG_MAX; + } +#endif #endif #ifdef CONFIG_SCHEDSTATS memset(&p->se.statistics, 0, sizeof(p->se.statistics)); @@ -3825,6 +3839,8 @@ static struct task_struct *find_process_by_pid(pid_t pid) return pid ? find_task_by_vpid(pid) : current; } +extern struct cpumask hmp_slow_cpu_mask; + /* Actually do priority change: must hold rq lock. */ static void __setscheduler(struct rq *rq, struct task_struct *p, int policy, int prio) @@ -3834,8 +3850,17 @@ __setscheduler(struct rq *rq, struct task_struct *p, int policy, int prio) p->normal_prio = normal_prio(p); /* we are holding p->pi_lock already */ p->prio = rt_mutex_getprio(p); - if (rt_prio(p->prio)) + if (rt_prio(p->prio)) { p->sched_class = &rt_sched_class; +#ifdef CONFIG_SCHED_HMP + if (!cpumask_empty(&hmp_slow_cpu_mask)) + if (cpumask_equal(&p->cpus_allowed, cpu_all_mask)) { + p->nr_cpus_allowed = + cpumask_weight(&hmp_slow_cpu_mask); + do_set_cpus_allowed(p, &hmp_slow_cpu_mask); + } +#endif + } else p->sched_class = &fair_sched_class; set_load_weight(p); |