sched: cfs core, kernel/sched_fair.c

[powerpc.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 693f0e6..9042032 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -34,6 +34,8 @@
 #define SCHED_FIFO             1
 #define SCHED_RR               2
 #define SCHED_BATCH            3
+/* SCHED_ISO: reserved but not implemented yet */
+#define SCHED_IDLE             5
 
 #ifdef __KERNEL__
 
@@ -193,6 +195,7 @@ struct task_struct;
 extern void sched_init(void);
 extern void sched_init_smp(void);
 extern void init_idle(struct task_struct *idle, int cpu);
+extern void init_idle_bootup_task(struct task_struct *idle);
 
 extern cpumask_t nohz_cpu_mask;
 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ)
@@ -639,18 +642,24 @@ static inline int sched_info_on(void)
 #endif
 }
 
-enum idle_type
-{
-       SCHED_IDLE,
-       NOT_IDLE,
-       NEWLY_IDLE,
-       MAX_IDLE_TYPES
+enum cpu_idle_type {
+       CPU_IDLE,
+       CPU_NOT_IDLE,
+       CPU_NEWLY_IDLE,
+       CPU_MAX_IDLE_TYPES
 };
 
 /*
  * sched-domains (multiprocessor balancing) declarations:
  */
-#define SCHED_LOAD_SCALE       128UL   /* increase resolution of load */
+
+/*
+ * Increase resolution of nice-level calculations:
+ */
+#define SCHED_LOAD_SHIFT       10
+#define SCHED_LOAD_SCALE       (1L << SCHED_LOAD_SHIFT)
+
+#define SCHED_LOAD_SCALE_FUZZ  (SCHED_LOAD_SCALE >> 5)
 
 #ifdef CONFIG_SMP
 #define SD_LOAD_BALANCE                1       /* Do load balancing on this domain. */
@@ -719,14 +728,14 @@ struct sched_domain {
 
 #ifdef CONFIG_SCHEDSTATS
        /* load_balance() stats */
-       unsigned long lb_cnt[MAX_IDLE_TYPES];
-       unsigned long lb_failed[MAX_IDLE_TYPES];
-       unsigned long lb_balanced[MAX_IDLE_TYPES];
-       unsigned long lb_imbalance[MAX_IDLE_TYPES];
-       unsigned long lb_gained[MAX_IDLE_TYPES];
-       unsigned long lb_hot_gained[MAX_IDLE_TYPES];
-       unsigned long lb_nobusyg[MAX_IDLE_TYPES];
-       unsigned long lb_nobusyq[MAX_IDLE_TYPES];
+       unsigned long lb_cnt[CPU_MAX_IDLE_TYPES];
+       unsigned long lb_failed[CPU_MAX_IDLE_TYPES];
+       unsigned long lb_balanced[CPU_MAX_IDLE_TYPES];
+       unsigned long lb_imbalance[CPU_MAX_IDLE_TYPES];
+       unsigned long lb_gained[CPU_MAX_IDLE_TYPES];
+       unsigned long lb_hot_gained[CPU_MAX_IDLE_TYPES];
+       unsigned long lb_nobusyg[CPU_MAX_IDLE_TYPES];
+       unsigned long lb_nobusyq[CPU_MAX_IDLE_TYPES];
 
        /* Active load balancing */
        unsigned long alb_cnt;
@@ -753,12 +762,6 @@ struct sched_domain {
 extern int partition_sched_domains(cpumask_t *partition1,
                                    cpumask_t *partition2);
 
-/*
- * Maximum cache size the migration-costs auto-tuning code will
- * search from:
- */
-extern unsigned int max_cache_size;
-
 #endif /* CONFIG_SMP */
 
 
@@ -1240,6 +1243,14 @@ static inline void idle_task_exit(void) {}
 
 extern void sched_idle_next(void);
 
+extern unsigned int sysctl_sched_granularity;
+extern unsigned int sysctl_sched_wakeup_granularity;
+extern unsigned int sysctl_sched_batch_wakeup_granularity;
+extern unsigned int sysctl_sched_stat_granularity;
+extern unsigned int sysctl_sched_runtime_limit;
+extern unsigned int sysctl_sched_child_runs_first;
+extern unsigned int sysctl_sched_features;
+
 #ifdef CONFIG_RT_MUTEXES
 extern int rt_mutex_getprio(struct task_struct *p);
 extern void rt_mutex_setprio(struct task_struct *p, int prio);
@@ -1638,10 +1649,7 @@ static inline unsigned int task_cpu(const struct task_struct *p)
        return task_thread_info(p)->cpu;
 }
 
-static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
-{
-       task_thread_info(p)->cpu = cpu;
-}
+extern void set_task_cpu(struct task_struct *p, unsigned int cpu);
 
 #else