| /* |
| * Copyright (c) 2004-2006 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 |
| */ |
| |
| #include "arch/alpha/types.hh" |
| #include "cpu/o3/thread_context.hh" |
| |
| template <class Impl> |
| class AlphaTC : public O3ThreadContext<Impl> |
| { |
| public: |
| #if FULL_SYSTEM |
| /** Returns pointer to the quiesce event. */ |
| virtual EndQuiesceEvent *getQuiesceEvent() |
| { |
| return this->thread->quiesceEvent; |
| } |
| #endif |
| |
| virtual uint64_t readNextNPC() |
| { |
| return this->readNextPC() + sizeof(TheISA::MachInst); |
| } |
| |
| virtual void setNextNPC(uint64_t val) |
| { |
| panic("Alpha has no NextNPC!"); |
| } |
| |
| virtual void changeRegFileContext(TheISA::RegContextParam param, |
| TheISA::RegContextVal val) |
| { panic("Not supported on Alpha!"); } |
| |
| |
| /** This function exits the thread context in the CPU and returns |
| * 1 if the CPU has no more active threads (meaning it's OK to exit); |
| * Used in syscall-emulation mode when a thread executes the 'exit' |
| * syscall. |
| */ |
| virtual int exit() |
| { |
| this->deallocate(); |
| |
| // If there are still threads executing in the system |
| if (this->cpu->numActiveThreads()) |
| return 0; // don't exit simulation |
| else |
| return 1; // exit simulation |
| } |
| }; |