cpu.hh (2876:a862ab9f93f8) cpu.hh (2880:a48d5059cd35)
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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106 friend class O3ThreadContext<Impl>;
107
108 public:
109 enum Status {
110 Running,
111 Idle,
112 Halted,
113 Blocked,
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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106 friend class O3ThreadContext<Impl>;
107
108 public:
109 enum Status {
110 Running,
111 Idle,
112 Halted,
113 Blocked,
114 Drained,
115 SwitchedOut
116 };
117
118 /** Overall CPU status. */
119 Status _status;
120
121 /** Per-thread status in CPU, used for SMT. */
122 Status _threadStatus[Impl::MaxThreads];

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247 /** Constructs a CPU with the given parameters. */
248 FullO3CPU(Params *params);
249 /** Destructor. */
250 ~FullO3CPU();
251
252 /** Registers statistics. */
253 void fullCPURegStats();
254
114 SwitchedOut
115 };
116
117 /** Overall CPU status. */
118 Status _status;
119
120 /** Per-thread status in CPU, used for SMT. */
121 Status _threadStatus[Impl::MaxThreads];

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246 /** Constructs a CPU with the given parameters. */
247 FullO3CPU(Params *params);
248 /** Destructor. */
249 ~FullO3CPU();
250
251 /** Registers statistics. */
252 void fullCPURegStats();
253
254 /** Returns a specific port. */
255 Port *getPort(const std::string &if_name, int idx);
256
255 /** Ticks CPU, calling tick() on each stage, and checking the overall
256 * activity to see if the CPU should deschedule itself.
257 */
258 void tick();
259
260 /** Initialize the CPU */
261 void init();
262

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307 void activateWhenReady(int tid);
308
309 /** Add or Remove a Thread Context in the CPU. */
310 void doContextSwitch();
311
312 /** Update The Order In Which We Process Threads. */
313 void updateThreadPriority();
314
257 /** Ticks CPU, calling tick() on each stage, and checking the overall
258 * activity to see if the CPU should deschedule itself.
259 */
260 void tick();
261
262 /** Initialize the CPU */
263 void init();
264

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309 void activateWhenReady(int tid);
310
311 /** Add or Remove a Thread Context in the CPU. */
312 void doContextSwitch();
313
314 /** Update The Order In Which We Process Threads. */
315 void updateThreadPriority();
316
317 /** Serialize state. */
318 virtual void serialize(std::ostream &os);
319
320 /** Unserialize from a checkpoint. */
321 virtual void unserialize(Checkpoint *cp, const std::string &section);
322
323 public:
315 /** Executes a syscall on this cycle.
316 * ---------------------------------------
317 * Note: this is a virtual function. CPU-Specific
318 * functionality defined in derived classes
319 */
320 virtual void syscall(int tid) { panic("Unimplemented!"); }
321
322 /** Starts draining the CPU's pipeline of all instructions in

--- 343 unchanged lines hidden --- 		324 /** Executes a syscall on this cycle.
325 * ---------------------------------------
326 * Note: this is a virtual function. CPU-Specific
327 * functionality defined in derived classes
328 */
329 virtual void syscall(int tid) { panic("Unimplemented!"); }
330
331 /** Starts draining the CPU's pipeline of all instructions in

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