65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
/*
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* Copyright (c) 2003 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* Defines SMT_MAX_CPUS and SMT_MAX_THREADS.
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*/
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#ifndef __SMT_HH__
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#define __SMT_HH__
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#ifndef SMT_MAX_CPUS
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/** The maximum number of cpus in any one system. */
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#define SMT_MAX_CPUS 4
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#endif
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#ifndef SMT_MAX_THREADS
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/** The number of TPUs in any processor. */
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#define SMT_MAX_THREADS 4
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#endif
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/**
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* The maximum number of active threads across all cpus. Used to
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* initialize per-thread statistics in the cache.
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*
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* NB: Be careful to only use it once all the CPUs that you care about
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* have been initialized
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*/
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extern int maxThreadsPerCPU;
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/**
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* Changes the status and priority of the thread with the given number.
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* @param thread_number The thread to change.
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* @param activate The new active status.
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* @param priority The new priority.
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*/
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void change_thread_state(int thread_number, int activate, int priority);
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#endif // __SMT_HH__
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