gem5  v22.0.0.1
of_scheduling_policy.hh
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31 
32 #ifndef __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__
33 #define __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__
34 
35 #include <vector>
36 
38 #include "gpu-compute/wavefront.hh"
39 
40 namespace gem5
41 {
42 
43 // oldest first where age is marked by the wave id
44 class OFSchedulingPolicy final : public __SchedulingPolicy<OFSchedulingPolicy>
45 {
46  public:
48  {
49  }
50 
51  static Wavefront*
53  {
54  panic_if(!sched_list->size(), "OF scheduling policy sched list is "
55  "empty.\n");
56  // set when policy choose a wave to schedule
57  Wavefront *selected_wave(nullptr);
58  int selected_wave_id = -1;
59  int selected_position = 0;
60 
61  for (int position = 0; position < sched_list->size(); ++position) {
62  Wavefront *cur_wave = sched_list->at(position);
63  int cur_wave_id = cur_wave->wfDynId;
64 
65  // Choosed wave with the lowest wave ID
66  if (selected_wave_id == -1 || cur_wave_id < selected_wave_id) {
67  selected_wave_id = cur_wave_id;
68  selected_wave = cur_wave;
69  selected_position = position;
70  }
71  }
72 
73  // Check to make sure ready list had at least one schedulable wave
74  panic_if(!selected_wave, "No wave found by OF scheduling policy.\n");
75  sched_list->erase(sched_list->begin() + selected_position);
76 
77  return selected_wave;
78  }
79 };
80 
81 } // namespace gem5
82 
83 #endif // __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__
gem5::Wavefront
Definition: wavefront.hh:60
std::vector
STL vector class.
Definition: stl.hh:37
wavefront.hh
gem5::__SchedulingPolicy
Intermediate class that derives from the i-face class, and implements its API.
Definition: scheduling_policy.hh:61
gem5::Wavefront::wfDynId
uint64_t wfDynId
Definition: wavefront.hh:226
scheduling_policy.hh
panic_if
#define panic_if(cond,...)
Conditional panic macro that checks the supplied condition and only panics if the condition is true a...
Definition: logging.hh:204
gem5::OFSchedulingPolicy::__chooseWave
static Wavefront * __chooseWave(std::vector< Wavefront * > *sched_list)
Definition: of_scheduling_policy.hh:52
gem5::OFSchedulingPolicy::OFSchedulingPolicy
OFSchedulingPolicy()
Definition: of_scheduling_policy.hh:47
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: gpu_translation_state.hh:37
gem5::OFSchedulingPolicy
Definition: of_scheduling_policy.hh:44

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