#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/stop_machine.h>
+#include <linux/irq_work.h>
#include <linux/tick.h>
#include <linux/slab.h>
* Under CFS, load is tracked on a per-entity basis and aggregated up.
* This allows for the description of both thread and group usage (in
* the FAIR_GROUP_SCHED case).
+ * runnable_load_avg is the sum of the load_avg_contrib of the
+ * sched_entities on the rq.
+ * blocked_load_avg is similar to runnable_load_avg except that its
+ * the blocked sched_entities on the rq.
+ * utilization_load_avg is the sum of the average running time of the
+ * sched_entities on the rq.
*/
- unsigned long runnable_load_avg, blocked_load_avg;
+ unsigned long runnable_load_avg, blocked_load_avg, utilization_load_avg;
atomic64_t decay_counter;
u64 last_decay;
atomic_long_t removed_load;
return sysctl_sched_rt_runtime >= 0;
}
+/* RT IPI pull logic requires IRQ_WORK */
+#ifdef CONFIG_IRQ_WORK
+# define HAVE_RT_PUSH_IPI
+#endif
+
/* Real-Time classes' related field in a runqueue: */
struct rt_rq {
struct rt_prio_array active;
unsigned long rt_nr_total;
int overloaded;
struct plist_head pushable_tasks;
+#ifdef HAVE_RT_PUSH_IPI
+ int push_flags;
+ int push_cpu;
+ struct irq_work push_work;
+ raw_spinlock_t push_lock;
#endif
+#endif /* CONFIG_SMP */
int rt_queued;
int rt_throttled;
struct sched_domain *sd;
unsigned long cpu_capacity;
+ unsigned long cpu_capacity_orig;
unsigned char idle_balance;
/* For active balancing */
* CPU capacity of this group, SCHED_LOAD_SCALE being max capacity
* for a single CPU.
*/
- unsigned int capacity, capacity_orig;
+ unsigned int capacity;
unsigned long next_update;
int imbalance; /* XXX unrelated to capacity but shared group state */
/*
#ifdef CONFIG_SMP
extern void sched_avg_update(struct rq *rq);
+
+#ifndef arch_scale_freq_capacity
+static __always_inline
+unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu)
+{
+ return SCHED_CAPACITY_SCALE;
+}
+#endif
+
static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
{
- rq->rt_avg += rt_delta;
+ rq->rt_avg += rt_delta * arch_scale_freq_capacity(NULL, cpu_of(rq));
sched_avg_update(rq);
}
#else
extern void print_dl_stats(struct seq_file *m, int cpu);
extern void init_cfs_rq(struct cfs_rq *cfs_rq);
-extern void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq);
-extern void init_dl_rq(struct dl_rq *dl_rq, struct rq *rq);
+extern void init_rt_rq(struct rt_rq *rt_rq);
+extern void init_dl_rq(struct dl_rq *dl_rq);
extern void cfs_bandwidth_usage_inc(void);
extern void cfs_bandwidth_usage_dec(void);