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Diffstat (limited to 'src/cpu/inorder/thread_state.hh')
-rw-r--r-- | src/cpu/inorder/thread_state.hh | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/src/cpu/inorder/thread_state.hh b/src/cpu/inorder/thread_state.hh deleted file mode 100644 index 4472bf1dd..000000000 --- a/src/cpu/inorder/thread_state.hh +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 2006 The Regents of The University of Michigan - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer; - * redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution; - * neither the name of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Authors: Kevin Lim - */ - -#ifndef __CPU_INORDER_THREAD_STATE_HH__ -#define __CPU_INORDER_THREAD_STATE_HH__ - -#include "arch/isa_traits.hh" -#include "base/callback.hh" -#include "base/output.hh" -#include "cpu/thread_context.hh" -#include "cpu/thread_state.hh" -#include "sim/sim_exit.hh" - -class EndQuiesceEvent; -class Event; -class FunctionalMemory; -class FunctionProfile; -class InOrderCPU; -class Process; -class ProfileNode; - -/** - * Class that has various thread state, such as the status, the - * current instruction being processed, whether or not the thread has - * a trap pending or is being externally updated, the ThreadContext - * pointer, etc. It also handles anything related to a specific - * thread's process, such as syscalls and checking valid addresses. - */ -class InOrderThreadState : public ThreadState { - typedef ThreadContext::Status Status; - - private: - /** Pointer to the CPU. */ - InOrderCPU *cpu; - - public: - /* 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; - - /** Whether or not the thread is currently waiting on a trap, and - * thus able to be externally updated without squashing. - */ - bool trapPending; - - InOrderThreadState(InOrderCPU *_cpu, ThreadID _thread_num, - Process *_process) - : ThreadState(reinterpret_cast<BaseCPU*>(_cpu), _thread_num, - _process), - cpu(_cpu), noSquashFromTC(false), trapPending(false), - lastGradIsBranch(false) - { } - - /** Handles the syscall. */ - void syscall(int64_t callnum) { process->syscall(callnum, tc); } - - void dumpFuncProfile(); - - /** Pointer to the ThreadContext of this thread. */ - ThreadContext *tc; - - /** Returns a pointer to the TC of this thread. */ - ThreadContext *getTC() { return tc; } - - /** Is last instruction graduated a branch? */ - bool lastGradIsBranch; - TheISA::PCState lastBranchPC; -}; - -#endif // __CPU_INORDER_THREAD_STATE_HH__ |