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Diffstat (limited to 'src/cpu/o3/mips/thread_context.hh')
-rw-r--r-- | src/cpu/o3/mips/thread_context.hh | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/cpu/o3/mips/thread_context.hh b/src/cpu/o3/mips/thread_context.hh new file mode 100644 index 000000000..5b03426f1 --- /dev/null +++ b/src/cpu/o3/mips/thread_context.hh @@ -0,0 +1,67 @@ +/* + * 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 + * Korey Sewell + */ + +#include "cpu/o3/thread_context.hh" + +template <class Impl> +class MipsTC : public O3ThreadContext<Impl> +{ + public: + virtual uint64_t readNextNPC() + { + return this->cpu->readNextNPC(this->thread->readTid()); + } + + virtual void setNextNPC(uint64_t val) + { + this->cpu->setNextNPC(val, this->thread->readTid()); + } + + virtual void changeRegFileContext(TheISA::RegFile::ContextParam param, + TheISA::RegFile::ContextVal val) + { panic("Not supported on Mips!"); } + + /** 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 + } +}; |