policy.hh

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 * Author: Matteo Andreozzi
 */

#ifndef __MEM_QOS_POLICY_HH__
#define __MEM_QOS_POLICY_HH__

#include "base/trace.hh"
#include "debug/QOS.hh"
#include "mem/qos/mem_ctrl.hh"
#include "mem/packet.hh"
#include "sim/system.hh"

namespace QoS {

class Policy : public SimObject
{
  public:
    using Params = QoSPolicyParams;
    Policy(const Params* p);

    virtual ~Policy();

    virtual void regStats() override {};

    virtual void init() override {};

    void setMemCtrl(MemCtrl* mem) { memCtrl = mem; };

    template <typename M, typename T>
    std::pair<MasterID, T> pair(M master, T value);

    virtual uint8_t schedule(const MasterID mId, const uint64_t data) = 0;

    uint8_t schedule(const PacketPtr pkt);

  protected:
    MemCtrl* memCtrl;
};

template <typename M, typename T>
std::pair<MasterID, T>
Policy::pair(M master, T value)
{
    auto id = memCtrl->system()->lookupMasterId(master);

    panic_if(id == Request::invldMasterId,
             "Unable to find master %s\n", master);

    DPRINTF(QOS,
            "Master %s [id %d] associated with QoS data %d\n",
            master, id, value);

    return std::pair<MasterID, T>(id, value);
}

} // namespace QoS

#endif /* __MEM_QOS_POLICY_HH__ */