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author | David Hashe <david.hashe@amd.com> | 2015-07-20 09:15:18 -0500 |
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committer | David Hashe <david.hashe@amd.com> | 2015-07-20 09:15:18 -0500 |
commit | 1850ed410fc85d7ac367dc7b378e5509d62ed900 (patch) | |
tree | bf5fa000a7eb57681afea983309e47faf27fb033 /src/mem/ruby/structures/AbstractReplacementPolicy.cc | |
parent | 74ca89f8b7d9b340d1d4f83511b57a2dfa2a70df (diff) | |
download | gem5-1850ed410fc85d7ac367dc7b378e5509d62ed900.tar.xz |
ruby: initialize replacement policies with their own simobjs
this is in preparation for other replacement policies that take additional
parameters.
Diffstat (limited to 'src/mem/ruby/structures/AbstractReplacementPolicy.cc')
-rw-r--r-- | src/mem/ruby/structures/AbstractReplacementPolicy.cc | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/mem/ruby/structures/AbstractReplacementPolicy.cc b/src/mem/ruby/structures/AbstractReplacementPolicy.cc new file mode 100644 index 000000000..fbcce6e2d --- /dev/null +++ b/src/mem/ruby/structures/AbstractReplacementPolicy.cc @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2013 Advanced Micro Devices, Inc + * 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. + * + * Author: Derek Hower + */ + +#include "mem/ruby/structures/AbstractReplacementPolicy.hh" + +AbstractReplacementPolicy::AbstractReplacementPolicy(const Params * p) + : SimObject(p) +{ + m_num_sets = p->size/p->block_size/p->assoc; + m_assoc = p->assoc; + m_last_ref_ptr = new Tick*[m_num_sets]; + for(unsigned i = 0; i < m_num_sets; i++){ + m_last_ref_ptr[i] = new Tick[m_assoc]; + for(unsigned j = 0; j < m_assoc; j++){ + m_last_ref_ptr[i][j] = 0; + } + } +} + +AbstractReplacementPolicy * +ReplacementPolicyParams::create() +{ + fatal("Cannot create an AbstractReplacementPolicy"); + return NULL; +} + + + +AbstractReplacementPolicy::~AbstractReplacementPolicy() +{ + if (m_last_ref_ptr != NULL){ + for (unsigned i = 0; i < m_num_sets; i++){ + if (m_last_ref_ptr[i] != NULL){ + delete[] m_last_ref_ptr[i]; + } + } + delete[] m_last_ref_ptr; + } +} + +Tick +AbstractReplacementPolicy::getLastAccess(int64 set, int64 way) +{ + return m_last_ref_ptr[set][way]; +} |