base.hh

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#ifndef __MEM_CACHE_REPLACEMENT_POLICIES_BASE_HH__
#define __MEM_CACHE_REPLACEMENT_POLICIES_BASE_HH__
 
#include <memory>
 
#include "base/compiler.hh"
#include "mem/cache/replacement_policies/replaceable_entry.hh"
#include "mem/packet.hh"
#include "params/BaseReplacementPolicy.hh"
#include "sim/sim_object.hh"
 
namespace gem5
{
 
typedef std::vector<ReplaceableEntry*> ReplacementCandidates;
 
namespace replacement_policy
{
 
class Base : public SimObject
{
  public:
    typedef BaseReplacementPolicyParams Params;
    Base(const Params &p) : SimObject(p) {}
    virtual ~Base() = default;
 
    virtual void invalidate(const std::shared_ptr<ReplacementData>&
        replacement_data) = 0;
 
    virtual void touch(const std::shared_ptr<ReplacementData>&
        replacement_data, const PacketPtr pkt)
    {
        touch(replacement_data);
    }
    virtual void touch(const std::shared_ptr<ReplacementData>&
        replacement_data) const = 0;
 
    virtual void reset(const std::shared_ptr<ReplacementData>&
        replacement_data, const PacketPtr pkt)
    {
        reset(replacement_data);
    }
    virtual void reset(const std::shared_ptr<ReplacementData>&
        replacement_data) const = 0;
 
    virtual ReplaceableEntry* getVictim(
                           const ReplacementCandidates& candidates) const = 0;
 
    virtual std::shared_ptr<ReplacementData> instantiateEntry() = 0;
};
 
} // namespace replacement_policy
} // namespace gem5
 
#endif // __MEM_CACHE_REPLACEMENT_POLICIES_BASE_HH__