rr_scheduling_policy.hh

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/*
 * Copyright (c) 2014-2017 Advanced Micro Devices, Inc.
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#ifndef __GPU_COMPUTE_RR_SCHEDULING_POLICY_HH__
#define __GPU_COMPUTE_RR_SCHEDULING_POLICY_HH__
 
#include <vector>
 
#include "base/logging.hh"
#include "gpu-compute/scheduling_policy.hh"
#include "gpu-compute/wavefront.hh"
 
namespace gem5
{
 
// round-robin pick among the list of ready waves
class RRSchedulingPolicy final : public __SchedulingPolicy<RRSchedulingPolicy>
{
  public:
    RRSchedulingPolicy()
    {
    }
 
    static Wavefront*
    __chooseWave(std::vector<Wavefront*> *sched_list)
    {
        panic_if(!sched_list->size(), "RR scheduling policy sched list is "
            "empty.\n");
        Wavefront *selected_wave(nullptr);
 
        selected_wave = sched_list->front();
        panic_if(!selected_wave, "No wave found by RR scheduling policy.\n");
        sched_list->erase(sched_list->begin());
 
        return selected_wave;
    }
};
 
} // namespace gem5
 
#endif // __GPU_COMPUTE_RR_SCHEDULING_POLICY_HH__