8fc06589cb
Clean out old memory python files, move them into old_mem directory. Maybe we should just delete them, they are under revision control.
Add new py files for new objects.
SConscript:
Update because memory is just a header file now
base/chunk_generator.hh:
Make Chunk Generator return the entire size if the chunk_size is set to zero. Useful when trying to chunck on blocksize of memory, which can write large pieces of data.
cpu/simple/cpu.cc:
Make sure to delete the pkt.
mem/physical.cc:
mem/physical.hh:
Set up response event.
mem/port.cc:
Rename rqst to req to conform to same standard naming convention.
python/m5/objects/PhysicalMemory.py:
Update the params, inheritence
--HG--
extra : convert_revision : 857154ec256522baf423b715833930497999549b
139 lines
4 KiB
C++
139 lines
4 KiB
C++
/*
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* Copyright (c) 2001-2005 The Regents of The University of Michigan
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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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/* @file
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*/
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#ifndef __PHYSICAL_MEMORY_HH__
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#define __PHYSICAL_MEMORY_HH__
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#include "base/range.hh"
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#include "mem/memory.hh"
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#include "mem/packet.hh"
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#include "mem/port.hh"
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#include "sim/eventq.hh"
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//
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// Functional model for a contiguous block of physical memory. (i.e. RAM)
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//
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class PhysicalMemory : public Memory
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{
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class MemoryPort : public Port
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{
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PhysicalMemory *memory;
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public:
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MemoryPort(PhysicalMemory *_memory);
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protected:
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virtual bool recvTiming(Packet &pkt);
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virtual Tick recvAtomic(Packet &pkt);
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virtual void recvFunctional(Packet &pkt);
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virtual void recvStatusChange(Status status);
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virtual void getDeviceAddressRanges(AddrRangeList &range_list,
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bool &owner);
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virtual int deviceBlockSize();
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};
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MemoryPort memoryPort;
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Port * PhysicalMemory::getPort(const char *if_name);
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int lat;
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struct MemResponseEvent : public Event
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{
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Packet pkt;
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MemoryPort *memoryPort;
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MemResponseEvent(Packet &pkt, MemoryPort *memoryPort);
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void process();
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const char *description();
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};
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private:
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// prevent copying of a MainMemory object
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PhysicalMemory(const PhysicalMemory &specmem);
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const PhysicalMemory &operator=(const PhysicalMemory &specmem);
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protected:
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Addr base_addr;
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Addr pmem_size;
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uint8_t *pmem_addr;
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int page_ptr;
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public:
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Addr new_page();
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uint64_t size() { return pmem_size; }
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public:
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PhysicalMemory(const std::string &n);
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virtual ~PhysicalMemory();
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protected:
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// error handling for prot_* functions
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void prot_access_error(Addr addr, int size, Command func);
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public:
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int deviceBlockSize();
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void prot_memset(Addr addr, uint8_t val, int size);
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// fast back-door memory access for vtophys(), remote gdb, etc.
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// uint64_t phys_read_qword(Addr addr) const;
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private:
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bool doTimingAccess(Packet &pkt);
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Tick doAtomicAccess(Packet &pkt);
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void doFunctionalAccess(Packet &pkt);
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void recvStatusChange(Port::Status status);
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public:
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virtual void serialize(std::ostream &os);
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virtual void unserialize(Checkpoint *cp, const std::string §ion);
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};
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/*uint64_t
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PhysicalMemory::phys_read_qword(Addr addr) const
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{
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if (addr + sizeof(uint64_t) > pmem_size)
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return 0;
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return *(uint64_t *)(pmem_addr + addr);
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}*/
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#endif //__PHYSICAL_MEMORY_HH__
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