physical.hh revision 2414
14040Ssaidi@eecs.umich.edu/* 24040Ssaidi@eecs.umich.edu * Copyright (c) 2001-2005 The Regents of The University of Michigan 34040Ssaidi@eecs.umich.edu * All rights reserved. 44040Ssaidi@eecs.umich.edu * 54040Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 64040Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 74040Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 84040Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 94040Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 104040Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 114040Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 124040Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 134040Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 144040Ssaidi@eecs.umich.edu * this software without specific prior written permission. 154040Ssaidi@eecs.umich.edu * 164040Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 174040Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 184040Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 194040Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 204040Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 214040Ssaidi@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 224040Ssaidi@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 234040Ssaidi@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 244040Ssaidi@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 254040Ssaidi@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 264040Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 274040Ssaidi@eecs.umich.edu */ 284040Ssaidi@eecs.umich.edu 294040Ssaidi@eecs.umich.edu/* @file 307741Sgblack@eecs.umich.edu */ 314040Ssaidi@eecs.umich.edu 324040Ssaidi@eecs.umich.edu#ifndef __PHYSICAL_MEMORY_HH__ 334040Ssaidi@eecs.umich.edu#define __PHYSICAL_MEMORY_HH__ 344040Ssaidi@eecs.umich.edu 354040Ssaidi@eecs.umich.edu#include "base/range.hh" 367741Sgblack@eecs.umich.edu#include "mem/memory.hh" 377741Sgblack@eecs.umich.edu#include "mem/packet.hh" 384040Ssaidi@eecs.umich.edu 394040Ssaidi@eecs.umich.edu// 404040Ssaidi@eecs.umich.edu// Functional model for a contiguous block of physical memory. (i.e. RAM) 414040Ssaidi@eecs.umich.edu// 424412Sbinkertn@umich.educlass PhysicalMemory : public Memory 434040Ssaidi@eecs.umich.edu{ 444040Ssaidi@eecs.umich.edu class MemoryPort : public Port 454040Ssaidi@eecs.umich.edu { 464040Ssaidi@eecs.umich.edu PhysicalMemory *memory; 474040Ssaidi@eecs.umich.edu 487741Sgblack@eecs.umich.edu public: 494040Ssaidi@eecs.umich.edu 504040Ssaidi@eecs.umich.edu MemoryPort(PhysicalMemory *_memory); 517741Sgblack@eecs.umich.edu 524648Sgblack@eecs.umich.edu protected: 538442Sgblack@eecs.umich.edu 548442Sgblack@eecs.umich.edu virtual bool recvTiming(Packet &pkt); 554040Ssaidi@eecs.umich.edu 567741Sgblack@eecs.umich.edu virtual Tick recvAtomic(Packet &pkt); 577741Sgblack@eecs.umich.edu 587741Sgblack@eecs.umich.edu virtual void recvFunctional(Packet &pkt); 594040Ssaidi@eecs.umich.edu 607741Sgblack@eecs.umich.edu virtual void recvStatusChange(Status status); 617741Sgblack@eecs.umich.edu 627741Sgblack@eecs.umich.edu virtual void getDeviceAddressRanges(AddrRangeList &range_list, 634040Ssaidi@eecs.umich.edu bool &owner); 644040Ssaidi@eecs.umich.edu 654040Ssaidi@eecs.umich.edu virtual int deviceBlockSize(); 664040Ssaidi@eecs.umich.edu 674040Ssaidi@eecs.umich.edu }; 684040Ssaidi@eecs.umich.edu 694040Ssaidi@eecs.umich.edu MemoryPort memoryPort; 704040Ssaidi@eecs.umich.edu 714040Ssaidi@eecs.umich.edu Port * PhysicalMemory::getPort(const char *if_name); 724040Ssaidi@eecs.umich.edu 734040Ssaidi@eecs.umich.edu int lat; 744040Ssaidi@eecs.umich.edu 754040Ssaidi@eecs.umich.edu //event to send response needs to be here 764040Ssaidi@eecs.umich.edu 774040Ssaidi@eecs.umich.edu private: 784040Ssaidi@eecs.umich.edu // prevent copying of a MainMemory object 794040Ssaidi@eecs.umich.edu PhysicalMemory(const PhysicalMemory &specmem); 804040Ssaidi@eecs.umich.edu const PhysicalMemory &operator=(const PhysicalMemory &specmem); 814040Ssaidi@eecs.umich.edu 824040Ssaidi@eecs.umich.edu protected: 834040Ssaidi@eecs.umich.edu Addr base_addr; 844040Ssaidi@eecs.umich.edu Addr pmem_size; 857741Sgblack@eecs.umich.edu uint8_t *pmem_addr; 864040Ssaidi@eecs.umich.edu int page_ptr; 874040Ssaidi@eecs.umich.edu 887741Sgblack@eecs.umich.edu public: 894648Sgblack@eecs.umich.edu Addr new_page(); 908442Sgblack@eecs.umich.edu uint64_t size() { return pmem_size; } 918442Sgblack@eecs.umich.edu 924040Ssaidi@eecs.umich.edu public: 934040Ssaidi@eecs.umich.edu PhysicalMemory(const std::string &n); 944040Ssaidi@eecs.umich.edu virtual ~PhysicalMemory(); 954040Ssaidi@eecs.umich.edu 964040Ssaidi@eecs.umich.edu protected: 974040Ssaidi@eecs.umich.edu // error handling for prot_* functions 984040Ssaidi@eecs.umich.edu void prot_access_error(Addr addr, int size, Command func); 994040Ssaidi@eecs.umich.edu 1004040Ssaidi@eecs.umich.edu public: 1014040Ssaidi@eecs.umich.edu virtual int deviceBlockSize(); 1024040Ssaidi@eecs.umich.edu 1034040Ssaidi@eecs.umich.edu void prot_memset(Addr addr, uint8_t val, int size); 1044040Ssaidi@eecs.umich.edu 1054040Ssaidi@eecs.umich.edu // fast back-door memory access for vtophys(), remote gdb, etc. 1068442Sgblack@eecs.umich.edu // uint64_t phys_read_qword(Addr addr) const; 1078442Sgblack@eecs.umich.edu private: 1084040Ssaidi@eecs.umich.edu bool doTimingAccess(Packet &pkt); 1097741Sgblack@eecs.umich.edu Tick doAtomicAccess(Packet &pkt); 1107741Sgblack@eecs.umich.edu void doFunctionalAccess(Packet &pkt); 1117741Sgblack@eecs.umich.edu 1124040Ssaidi@eecs.umich.edu void recvStatusChange(Port::Status status); 1137741Sgblack@eecs.umich.edu 1147741Sgblack@eecs.umich.edu public: 1157741Sgblack@eecs.umich.edu virtual void serialize(std::ostream &os); 1164040Ssaidi@eecs.umich.edu virtual void unserialize(Checkpoint *cp, const std::string §ion); 1174040Ssaidi@eecs.umich.edu}; 1184040Ssaidi@eecs.umich.edu 1194040Ssaidi@eecs.umich.edu/*uint64_t 1204040Ssaidi@eecs.umich.eduPhysicalMemory::phys_read_qword(Addr addr) const 1214040Ssaidi@eecs.umich.edu{ 1224040Ssaidi@eecs.umich.edu if (addr + sizeof(uint64_t) > pmem_size) 1234040Ssaidi@eecs.umich.edu return 0; 1244040Ssaidi@eecs.umich.edu 1254040Ssaidi@eecs.umich.edu return *(uint64_t *)(pmem_addr + addr); 1264040Ssaidi@eecs.umich.edu}*/ 1274040Ssaidi@eecs.umich.edu 1284040Ssaidi@eecs.umich.edu 1295736Snate@binkert.org#endif //__PHYSICAL_MEMORY_HH__ 1304040Ssaidi@eecs.umich.edu