| /* |
| * Copyright (c) 2018 Inria |
| * Copyright (c) 2012-2014,2017 ARM Limited |
| * All rights reserved. |
| * |
| * The license below extends only to copyright in the software and shall |
| * not be construed as granting a license to any other intellectual |
| * property including but not limited to intellectual property relating |
| * to a hardware implementation of the functionality of the software |
| * licensed hereunder. You may use the software subject to the license |
| * terms below provided that you ensure that this notice is replicated |
| * unmodified and in its entirety in all distributions of the software, |
| * modified or unmodified, in source code or in binary form. |
| * |
| * Copyright (c) 2003-2005,2014 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 |
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| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @file |
| * Definitions of a set associative indexing policy. |
| */ |
| |
| #include "mem/cache/tags/indexing_policies/set_associative.hh" |
| |
| #include "mem/cache/replacement_policies/replaceable_entry.hh" |
| |
| namespace gem5 |
| { |
| |
| SetAssociative::SetAssociative(const Params &p) |
| : BaseIndexingPolicy(p) |
| { |
| } |
| |
| uint32_t |
| SetAssociative::extractSet(const Addr addr) const |
| { |
| return (addr >> setShift) & setMask; |
| } |
| |
| Addr |
| SetAssociative::regenerateAddr(const Addr tag, const ReplaceableEntry* entry) |
| const |
| { |
| return (tag << tagShift) | (entry->getSet() << setShift); |
| } |
| |
| std::vector<ReplaceableEntry*> |
| SetAssociative::getPossibleEntries(const Addr addr) const |
| { |
| return sets[extractSet(addr)]; |
| } |
| |
| } // namespace gem5 |
