efa6c773b3
Change-Id: Ib261ec8b302b55e539d8e13064957170412b752c Signed-off-by: Tiago Mück <tiago.muck@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/21920 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
118 lines
4.3 KiB
C++
118 lines
4.3 KiB
C++
/*
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* Copyright (c) 2017,2019 ARM Limited
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* All rights reserved.
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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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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#ifndef __MEM_RUBY_STRUCTURES_DIRECTORYMEMORY_HH__
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#define __MEM_RUBY_STRUCTURES_DIRECTORYMEMORY_HH__
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#include <iostream>
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#include <string>
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#include "base/addr_range.hh"
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#include "mem/ruby/common/Address.hh"
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#include "mem/ruby/protocol/DirectoryRequestType.hh"
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#include "mem/ruby/slicc_interface/AbstractCacheEntry.hh"
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#include "params/RubyDirectoryMemory.hh"
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#include "sim/sim_object.hh"
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class DirectoryMemory : public SimObject
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{
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public:
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typedef RubyDirectoryMemoryParams Params;
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DirectoryMemory(const Params *p);
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~DirectoryMemory();
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void init();
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/**
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* Return the index in the directory based on an address
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*
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* This function transforms an address which belongs to a not
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* necessarily continuous vector of address ranges into a flat
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* address that we use to index in the directory
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*
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* @param an input address
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* @return the corresponding index in the directory
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*
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*/
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uint64_t mapAddressToLocalIdx(Addr address);
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uint64_t getSize() { return m_size_bytes; }
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bool isPresent(Addr address);
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AbstractCacheEntry *lookup(Addr address);
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AbstractCacheEntry *allocate(Addr address, AbstractCacheEntry* new_entry);
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// Explicitly free up this address
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void deallocate(Addr address);
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void print(std::ostream& out) const;
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void recordRequestType(DirectoryRequestType requestType);
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private:
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// Private copy constructor and assignment operator
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DirectoryMemory(const DirectoryMemory& obj);
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DirectoryMemory& operator=(const DirectoryMemory& obj);
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private:
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const std::string m_name;
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AbstractCacheEntry **m_entries;
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// int m_size; // # of memory module blocks this directory is
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// responsible for
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uint64_t m_size_bytes;
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uint64_t m_size_bits;
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uint64_t m_num_entries;
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/**
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* The address range for which the directory responds. Normally
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* this is all possible memory addresses.
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*/
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const AddrRangeList addrRanges;
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};
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inline std::ostream&
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operator<<(std::ostream& out, const DirectoryMemory& obj)
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{
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obj.print(out);
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out << std::flush;
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return out;
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}
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#endif // __MEM_RUBY_STRUCTURES_DIRECTORYMEMORY_HH__
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