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29 #ifndef __CPU_O3_THREAD_STATE_HH__
30 #define __CPU_O3_THREAD_STATE_HH__
32 #include "arch/faults.hh"
33 #include "arch/isa_traits.hh"
34 #include "cpu/exec_context.hh"
35 #include "cpu/thread_state.hh"
41 class EndQuiesceEvent;
42 class FunctionProfile;
45 class FunctionalMemory;
50 * Class that has various thread state, such as the status, the
51 * current instruction being processed, whether or not the thread has
52 * a trap pending or is being externally updated, the ExecContext
53 * proxy pointer, etc. It also handles anything related to a specific
54 * thread's process, such as syscalls and checking valid addresses.
57 struct O3ThreadState : public ThreadState {
58 typedef ExecContext::Status Status;
59 typedef typename Impl::FullCPU FullCPU;
61 /** Current status of the thread. */
64 /** Current instruction the thread is committing. Only set and
65 * used for DTB faults currently.
67 TheISA::MachInst inst;
70 /** Pointer to the CPU. */
73 /** Whether or not the thread is currently in syscall mode, and
74 * thus able to be externally updated without squashing.
78 /** Whether or not the thread is currently waiting on a trap, and
79 * thus able to be externally updated without squashing.
84 O3ThreadState(FullCPU *_cpu, int _thread_num, FunctionalMemory *_mem)
85 : ThreadState(-1, _thread_num, _mem),
86 inSyscall(0), trapPending(0)
89 O3ThreadState(FullCPU *_cpu, int _thread_num, Process *_process, int _asid,
91 : ThreadState(-1, _thread_num, mem, _process, _asid),
92 cpu(_cpu), inSyscall(0), trapPending(0)
96 /** Pointer to the ExecContext of this thread. @todo: Don't call
100 /** Returns a pointer to the XC of this thread. */
101 ExecContext *getXCProxy() { return xcProxy; }
103 /** Returns the status of this thread. */
104 Status status() const { return _status; }
106 /** Sets the status of this thread. */
107 void setStatus(Status new_status) { _status = new_status; }
109 /** Sets the current instruction being committed. */
110 void setInst(TheISA::MachInst _inst) { inst = _inst; }
112 /** Reads the number of instructions functionally executed and
115 Counter readFuncExeInst() { return funcExeInst; }
117 /** Sets the total number of instructions functionally executed
120 void setFuncExeInst(Counter new_val) { funcExeInst = new_val; }
123 /** Handles the syscall. */
124 void syscall(int64_t callnum) { process->syscall(callnum, xcProxy); }
128 #endif // __CPU_O3_THREAD_STATE_HH__