thread_state.hh

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#ifndef __CPU_O3_THREAD_STATE_HH__
#define __CPU_O3_THREAD_STATE_HH__
 
#include <memory>
 
#include "cpu/thread_context.hh"
#include "cpu/thread_state.hh"
 
namespace gem5
{
 
class Process;
 
namespace o3
{
 
class CPU;
 
class ThreadState : public gem5::ThreadState
{
  public:
    PCEventQueue pcEventQueue;
    EventQueue comInstEventQueue;
 
    /* This variable controls if writes to a thread context should cause a all
     * dynamic/speculative state to be thrown away. Nominally this is the
     * desired behavior because the external thread context write has updated
     * some state that could be used by an inflight instruction, however there
     * are some cases like in a fault/trap handler where this behavior would
     * lead to successive restarts and forward progress couldn't be made. This
     * variable controls if the squashing will occur.
     */
    bool noSquashFromTC = false;
 
    bool trapPending = false;
 
    std::unique_ptr<BaseHTMCheckpoint> htmCheckpoint;
 
    ThreadState(CPU *_cpu, int _thread_num, Process *_process);
 
    void serialize(CheckpointOut &cp) const override;
    void unserialize(CheckpointIn &cp) override;
 
    gem5::ThreadContext *tc = nullptr;
 
    gem5::ThreadContext *getTC() { return tc; }
};
 
} // namespace o3
} // namespace gem5
 
#endif // __CPU_O3_THREAD_STATE_HH__