include/linux/vserver/sched_def.h

   1 #ifndef _VX_SCHED_DEF_H
   2 #define _VX_SCHED_DEF_H
   3
   4 #include <linux/spinlock.h>
   5 #include <linux/jiffies.h>
   6 #include <linux/cpumask.h>
   7 #include <asm/atomic.h>
   8 #include <asm/param.h>
   9
  10
  11 struct _vx_ticks {
  12         uint64_t user_ticks;            /* token tick events */
  13         uint64_t sys_ticks;             /* token tick events */
  14         uint64_t hold_ticks;            /* token ticks paused */
  15         uint64_t unused[5];             /* cacheline ? */
  16 };
  17
  18 #ifdef CONFIG_VSERVER_ACB_SCHED
  19 enum {
  20 // Different scheduling classes
  21     SCH_GUARANTEE = 0,
  22     SCH_BEST_EFFORT = 1,
  23     SCH_NUM_CLASSES = 2,
  24 // States
  25     SCH_UNINITIALIZED,
  26     SCH_INITIALIZED,
  27 };
  28 #endif
  29
  30 /* context sub struct */
  31
  32 struct _vx_sched {
  33 #ifdef CONFIG_VSERVER_ACB_SCHED
  34         uint64_t ticks[SCH_NUM_CLASSES];
  35         uint64_t last_ticks[SCH_NUM_CLASSES];
  36         int      state[SCH_NUM_CLASSES];
  37 #endif
  38         atomic_t tokens;                /* number of CPU tokens */
  39         spinlock_t tokens_lock;         /* lock for token bucket */
  40
  41         int fill_rate;                  /* Fill rate: add X tokens... */
  42         int interval;                   /* Divisor:   per Y jiffies   */
  43         int tokens_min;                 /* Limit:     minimum for unhold */
  44         int tokens_max;                 /* Limit:     no more than N tokens */
  45         uint32_t jiffies;               /* last time accounted */
  46
  47         int priority_bias;              /* bias offset for priority */
  48         int vavavoom;                   /* last calculated vavavoom */
  49
  50         cpumask_t cpus_allowed;         /* cpu mask for context */
  51
  52         struct _vx_ticks cpu[NR_CPUS];
  53 };
  54
  55 #endif  /* _VX_SCHED_DEF_H */