cpu.hh (11151:ca4ea9b5c052) cpu.hh (11168:f98eb2da15a4)
1/*
2 * Copyright (c) 2011-2013 ARM Limited
3 * Copyright (c) 2013 Advanced Micro Devices, Inc.
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating

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333 void haltContext(ThreadID tid);
334
335 /** Update The Order In Which We Process Threads. */
336 void updateThreadPriority();
337
338 /** Is the CPU draining? */
339 bool isDraining() const { return drainState() == DrainState::Draining; }
340
1/*
2 * Copyright (c) 2011-2013 ARM Limited
3 * Copyright (c) 2013 Advanced Micro Devices, Inc.
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating

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333 void haltContext(ThreadID tid);
334
335 /** Update The Order In Which We Process Threads. */
336 void updateThreadPriority();
337
338 /** Is the CPU draining? */
339 bool isDraining() const { return drainState() == DrainState::Draining; }
340
341 void serializeThread(CheckpointOut &cp,
342 ThreadID tid) const M5_ATTR_OVERRIDE;
343 void unserializeThread(CheckpointIn &cp, ThreadID tid) M5_ATTR_OVERRIDE;
341 void serializeThread(CheckpointOut &cp, ThreadID tid) const override;
342 void unserializeThread(CheckpointIn &cp, ThreadID tid) override;
344
345 public:
346 /** Executes a syscall.
347 * @todo: Determine if this needs to be virtual.
348 */
349 void syscall(int64_t callnum, ThreadID tid);
350
351 /** Starts draining the CPU's pipeline of all instructions in
352 * order to stop all memory accesses. */
343
344 public:
345 /** Executes a syscall.
346 * @todo: Determine if this needs to be virtual.
347 */
348 void syscall(int64_t callnum, ThreadID tid);
349
350 /** Starts draining the CPU's pipeline of all instructions in
351 * order to stop all memory accesses. */
353 DrainState drain() M5_ATTR_OVERRIDE;
352 DrainState drain() override;
354
355 /** Resumes execution after a drain. */
353
354 /** Resumes execution after a drain. */
356 void drainResume() M5_ATTR_OVERRIDE;
355 void drainResume() override;
357
358 /**
359 * Commit has reached a safe point to drain a thread.
360 *
361 * Commit calls this method to inform the pipeline that it has
362 * reached a point where it is not executed microcode and is about
363 * to squash uncommitted instructions to fully drain the pipeline.
364 */

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635
636 /** Changes a stage's status to inactive within the activity recorder. */
637 void deactivateStage(const StageIdx idx)
638 { activityRec.deactivateStage(idx); }
639
640 /** Wakes the CPU, rescheduling the CPU if it's not already active. */
641 void wakeCPU();
642
356
357 /**
358 * Commit has reached a safe point to drain a thread.
359 *
360 * Commit calls this method to inform the pipeline that it has
361 * reached a point where it is not executed microcode and is about
362 * to squash uncommitted instructions to fully drain the pipeline.
363 */

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634
635 /** Changes a stage's status to inactive within the activity recorder. */
636 void deactivateStage(const StageIdx idx)
637 { activityRec.deactivateStage(idx); }
638
639 /** Wakes the CPU, rescheduling the CPU if it's not already active. */
640 void wakeCPU();
641
643 virtual void wakeup(ThreadID tid) M5_ATTR_OVERRIDE;
642 virtual void wakeup(ThreadID tid) override;
644
645 /** Gets a free thread id. Use if thread ids change across system. */
646 ThreadID getFreeTid();
647
648 public:
649 /** Returns a pointer to a thread context. */
650 ThreadContext *
651 tcBase(ThreadID tid)

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644 /** Gets a free thread id. Use if thread ids change across system. */
645 ThreadID getFreeTid();
646
647 public:
648 /** Returns a pointer to a thread context. */
649 ThreadContext *
650 tcBase(ThreadID tid)

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