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#ifndef LITMUS_GPU_AFFINITY_H
#define LITMUS_GPU_AFFINITY_H
#include <litmus/rt_param.h>
#include <litmus/sched_plugin.h>
#include <litmus/litmus.h>
void update_gpu_estimate(struct task_struct* t, lt_t observed);
gpu_migration_dist_t gpu_migration_distance(int a, int b);
static inline void reset_gpu_tracker(struct task_struct* t)
{
t->rt_param.accum_gpu_time = 0;
}
static inline void start_gpu_tracker(struct task_struct* t)
{
t->rt_param.gpu_time_stamp = litmus_clock();
}
static inline void stop_gpu_tracker(struct task_struct* t)
{
lt_t now = litmus_clock();
t->rt_param.accum_gpu_time += (now - t->rt_param.gpu_time_stamp);
}
static inline lt_t get_gpu_time(struct task_struct* t)
{
return t->rt_param.accum_gpu_time;
}
static inline lt_t get_gpu_estimate(struct task_struct* t, gpu_migration_dist_t dist)
{
// int i;
// fpbuf_t temp = _fp_to_integer(t->rt_param.gpu_migration_est[dist].est);
// lt_t val = (temp >= 0) ? temp : 0; // never allow negative estimates...
lt_t val = t->rt_param.gpu_migration_est[dist].avg;
// WARN_ON(temp < 0);
// lower-bound a distant migration to be at least equal to the level
// below it.
// for(i = dist-1; (val == 0) && (i >= MIG_LOCAL); --i) {
// val = _fp_to_integer(t->rt_param.gpu_migration_est[i].est);
// }
return ((val > 0) ? val : dist+1);
}
#endif
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