Orange Pi5 kernel

#ifdef CONFIG_SMP
#include "sched-pelt.h"
 
int __update_load_avg_blocked_se(u64 now, struct sched_entity *se);
int __update_load_avg_se(u64 now, struct cfs_rq *cfs_rq, struct sched_entity *se);
int __update_load_avg_cfs_rq(u64 now, struct cfs_rq *cfs_rq);
int update_rt_rq_load_avg(u64 now, struct rq *rq, int running);
int update_dl_rq_load_avg(u64 now, struct rq *rq, int running);
 
#ifdef CONFIG_SCHED_THERMAL_PRESSURE
int update_thermal_load_avg(u64 now, struct rq *rq, u64 capacity);
 
static inline u64 thermal_load_avg(struct rq *rq)
{
<------>return READ_ONCE(rq->avg_thermal.load_avg);
}
#else
static inline int
update_thermal_load_avg(u64 now, struct rq *rq, u64 capacity)
{
<------>return 0;
}
 
static inline u64 thermal_load_avg(struct rq *rq)
{
<------>return 0;
}
#endif
 
#ifdef CONFIG_HAVE_SCHED_AVG_IRQ
int update_irq_load_avg(struct rq *rq, u64 running);
#else
static inline int
update_irq_load_avg(struct rq *rq, u64 running)
{
<------>return 0;
}
#endif
 
#define PELT_MIN_DIVIDER	(LOAD_AVG_MAX - 1024)
 
static inline u32 get_pelt_divider(struct sched_avg *avg)
{
<------>return PELT_MIN_DIVIDER + avg->period_contrib;
}
 
static inline void cfs_se_util_change(struct sched_avg *avg)
{
<------>unsigned int enqueued;
 
<------>if (!sched_feat(UTIL_EST))
<------><------>return;
 
<------>/* Avoid store if the flag has been already reset */
<------>enqueued = avg->util_est.enqueued;
<------>if (!(enqueued & UTIL_AVG_UNCHANGED))
<------><------>return;
 
<------>/* Reset flag to report util_avg has been updated */
<------>enqueued &= ~UTIL_AVG_UNCHANGED;
<------>WRITE_ONCE(avg->util_est.enqueued, enqueued);
}
 
/*
 * The clock_pelt scales the time to reflect the effective amount of
 * computation done during the running delta time but then sync back to
 * clock_task when rq is idle.
 *
 *
 * absolute time   | 1| 2| 3| 4| 5| 6| 7| 8| 9|10|11|12|13|14|15|16
 * @ max capacity  ------******---------------******---------------
 * @ half capacity ------************---------************---------
 * clock pelt      | 1| 2|    3|    4| 7| 8| 9|   10|   11|14|15|16
 *
 */
static inline void update_rq_clock_pelt(struct rq *rq, s64 delta)
{
<------>if (unlikely(is_idle_task(rq->curr))) {
<------><------>/* The rq is idle, we can sync to clock_task */
<------><------>rq->clock_pelt  = rq_clock_task(rq);
<------><------>return;
<------>}
 
<------>/*
<------> * When a rq runs at a lower compute capacity, it will need
<------> * more time to do the same amount of work than at max
<------> * capacity. In order to be invariant, we scale the delta to
<------> * reflect how much work has been really done.
<------> * Running longer results in stealing idle time that will
<------> * disturb the load signal compared to max capacity. This
<------> * stolen idle time will be automatically reflected when the
<------> * rq will be idle and the clock will be synced with
<------> * rq_clock_task.
<------> */
 
<------>/*
<------> * Scale the elapsed time to reflect the real amount of
<------> * computation
<------> */
<------>delta = cap_scale(delta, arch_scale_cpu_capacity(cpu_of(rq)));
<------>delta = cap_scale(delta, arch_scale_freq_capacity(cpu_of(rq)));
 
<------>rq->clock_pelt += delta;
}
 
/*
 * When rq becomes idle, we have to check if it has lost idle time
 * because it was fully busy. A rq is fully used when the /Sum util_sum
 * is greater or equal to:
 * (LOAD_AVG_MAX - 1024 + rq->cfs.avg.period_contrib) << SCHED_CAPACITY_SHIFT;
 * For optimization and computing rounding purpose, we don't take into account
 * the position in the current window (period_contrib) and we use the higher
 * bound of util_sum to decide.
 */
static inline void update_idle_rq_clock_pelt(struct rq *rq)
{
<------>u32 divider = ((LOAD_AVG_MAX - 1024) << SCHED_CAPACITY_SHIFT) - LOAD_AVG_MAX;
<------>u32 util_sum = rq->cfs.avg.util_sum;
<------>util_sum += rq->avg_rt.util_sum;
<------>util_sum += rq->avg_dl.util_sum;
 
<------>/*
<------> * Reflecting stolen time makes sense only if the idle
<------> * phase would be present at max capacity. As soon as the
<------> * utilization of a rq has reached the maximum value, it is
<------> * considered as an always runnig rq without idle time to
<------> * steal. This potential idle time is considered as lost in
<------> * this case. We keep track of this lost idle time compare to
<------> * rq's clock_task.
<------> */
<------>if (util_sum >= divider)
<------><------>rq->lost_idle_time += rq_clock_task(rq) - rq->clock_pelt;
}
 
static inline u64 rq_clock_pelt(struct rq *rq)
{
<------>lockdep_assert_held(&rq->lock);
<------>assert_clock_updated(rq);
 
<------>return rq->clock_pelt - rq->lost_idle_time;
}
 
#ifdef CONFIG_CFS_BANDWIDTH
/* rq->task_clock normalized against any time this cfs_rq has spent throttled */
static inline u64 cfs_rq_clock_pelt(struct cfs_rq *cfs_rq)
{
<------>if (unlikely(cfs_rq->throttle_count))
<------><------>return cfs_rq->throttled_clock_task - cfs_rq->throttled_clock_task_time;
 
<------>return rq_clock_pelt(rq_of(cfs_rq)) - cfs_rq->throttled_clock_task_time;
}
#else
static inline u64 cfs_rq_clock_pelt(struct cfs_rq *cfs_rq)
{
<------>return rq_clock_pelt(rq_of(cfs_rq));
}
#endif
 
#else
 
static inline int
update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
{
<------>return 0;
}
 
static inline int
update_rt_rq_load_avg(u64 now, struct rq *rq, int running)
{
<------>return 0;
}
 
static inline int
update_dl_rq_load_avg(u64 now, struct rq *rq, int running)
{
<------>return 0;
}
 
static inline int
update_thermal_load_avg(u64 now, struct rq *rq, u64 capacity)
{
<------>return 0;
}
 
static inline u64 thermal_load_avg(struct rq *rq)
{
<------>return 0;
}
 
static inline int
update_irq_load_avg(struct rq *rq, u64 running)
{
<------>return 0;
}
 
static inline u64 rq_clock_pelt(struct rq *rq)
{
<------>return rq_clock_task(rq);
}
 
static inline void
update_rq_clock_pelt(struct rq *rq, s64 delta) { }
 
static inline void
update_idle_rq_clock_pelt(struct rq *rq) { }
 
#endif