| /* |
| * Copyright (c) 2012 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. |
| * |
| * 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: Andreas Hansson |
| */ |
| |
| #ifndef __PHYSICAL_MEMORY_HH__ |
| #define __PHYSICAL_MEMORY_HH__ |
| |
| #include "base/range_map.hh" |
| #include "mem/abstract_mem.hh" |
| #include "mem/packet.hh" |
| |
| /** |
| * The physical memory encapsulates all memories in the system and |
| * provides basic functionality for accessing those memories without |
| * going through the memory system and interconnect. |
| */ |
| class PhysicalMemory |
| { |
| |
| private: |
| |
| // Global address map |
| range_map<Addr, AbstractMemory* > addrMap; |
| |
| // a mutable cache for the last range that matched an address |
| mutable Range<Addr> rangeCache; |
| |
| // All address-mapped memories |
| std::vector<AbstractMemory*> memories; |
| |
| // The total memory size |
| uint64_t size; |
| |
| // Prevent copying |
| PhysicalMemory(const PhysicalMemory&); |
| |
| // Prevent assignment |
| PhysicalMemory& operator=(const PhysicalMemory&); |
| |
| public: |
| |
| /** |
| * Create a physical memory object, wrapping a number of memories. |
| */ |
| PhysicalMemory(const std::vector<AbstractMemory*>& _memories); |
| |
| /** |
| * Nothing to destruct. |
| */ |
| ~PhysicalMemory() { } |
| |
| /** |
| * Check if a physical address is within a range of a memory that |
| * is part of the global address map. |
| * |
| * @param addr A physical address |
| * @return Whether the address corresponds to a memory |
| */ |
| bool isMemAddr(Addr addr) const; |
| |
| /** |
| * Get the memory ranges for all memories that are to be reported |
| * to the configuration table. |
| * |
| * @return All configuration table memory ranges |
| */ |
| AddrRangeList getConfAddrRanges() const; |
| |
| /** |
| * Get the total physical memory size. |
| * |
| * @return The sum of all memory sizes |
| */ |
| uint64_t totalSize() const { return size; } |
| |
| /** |
| * |
| */ |
| void access(PacketPtr pkt); |
| void functionalAccess(PacketPtr pkt); |
| }; |
| |
| |
| |
| |
| #endif //__PHYSICAL_MEMORY_HH__ |