6dc3b2fa39
SConscript:
compile ide devices
base/chunk_generator.hh:
add another parameter to the chuck generator called complete() which
returns the number of bytes transfered so far. Very useful for
adding to a pointer.
configs/test/fs.py:
Add ide disk to fs test configuration
dev/ide_ctrl.cc:
dev/ide_ctrl.hh:
dev/ide_disk.cc:
dev/ide_disk.hh:
dev/io_device.cc:
dev/io_device.hh:
dev/pciconfigall.cc:
dev/pciconfigall.hh:
dev/pcidev.cc:
dev/pcidev.hh:
update for new memory system
mem/bus.cc:
support devices that return multiple ranges
remove old ranges before using new info
mem/packet.hh:
make senderstate void* per steve's request that we use every
construct possible in C++
mem/physical.cc:
have memory stamp the packet with the time.
mem/physical.hh:
actually set the memory latency variable
python/m5/objects/Device.py:
Add DmaDevice
python/m5/objects/Ide.py:
Ide disk no longer has a physmem pointer
python/m5/objects/Pci.py:
update pci device for newmem
python/m5/objects/PhysicalMemory.py:
add latency parameter for physical memory
sim/byteswap.hh:
use fast architecture dependent byteswap calls if they exist
--HG--
extra : convert_revision : e3cf2e8f61064ad302d94bc22010a00c59f3f793
127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/*
|
|
* Copyright (c) 2001-2005 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
|
|
* 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.
|
|
*/
|
|
|
|
/* @file
|
|
*/
|
|
|
|
#ifndef __PHYSICAL_MEMORY_HH__
|
|
#define __PHYSICAL_MEMORY_HH__
|
|
|
|
#include "base/range.hh"
|
|
#include "mem/mem_object.hh"
|
|
#include "mem/packet.hh"
|
|
#include "mem/port.hh"
|
|
#include "sim/eventq.hh"
|
|
#include <map>
|
|
#include <string>
|
|
|
|
//
|
|
// Functional model for a contiguous block of physical memory. (i.e. RAM)
|
|
//
|
|
class PhysicalMemory : public MemObject
|
|
{
|
|
class MemoryPort : public Port
|
|
{
|
|
PhysicalMemory *memory;
|
|
|
|
public:
|
|
|
|
MemoryPort(PhysicalMemory *_memory);
|
|
|
|
protected:
|
|
|
|
virtual bool recvTiming(Packet &pkt);
|
|
|
|
virtual Tick recvAtomic(Packet &pkt);
|
|
|
|
virtual void recvFunctional(Packet &pkt);
|
|
|
|
virtual void recvStatusChange(Status status);
|
|
|
|
virtual void getDeviceAddressRanges(AddrRangeList &resp,
|
|
AddrRangeList &snoop);
|
|
|
|
virtual int deviceBlockSize();
|
|
};
|
|
|
|
int numPorts;
|
|
|
|
|
|
struct MemResponseEvent : public Event
|
|
{
|
|
Packet &pkt;
|
|
MemoryPort *memoryPort;
|
|
|
|
MemResponseEvent(Packet &pkt, MemoryPort *memoryPort);
|
|
void process();
|
|
const char *description();
|
|
};
|
|
|
|
private:
|
|
// prevent copying of a MainMemory object
|
|
PhysicalMemory(const PhysicalMemory &specmem);
|
|
const PhysicalMemory &operator=(const PhysicalMemory &specmem);
|
|
|
|
protected:
|
|
Addr base_addr;
|
|
Addr pmem_size;
|
|
uint8_t *pmem_addr;
|
|
MemoryPort *port;
|
|
int page_ptr;
|
|
Tick lat;
|
|
|
|
public:
|
|
Addr new_page();
|
|
uint64_t size() { return pmem_size; }
|
|
|
|
public:
|
|
PhysicalMemory(const std::string &n, Tick latency);
|
|
virtual ~PhysicalMemory();
|
|
|
|
public:
|
|
int deviceBlockSize();
|
|
void getAddressRanges(AddrRangeList &resp, AddrRangeList &snoop);
|
|
virtual Port *getPort(const std::string &if_name);
|
|
void virtual init();
|
|
|
|
// fast back-door memory access for vtophys(), remote gdb, etc.
|
|
// uint64_t phys_read_qword(Addr addr) const;
|
|
private:
|
|
bool doTimingAccess(Packet &pkt, MemoryPort *memoryPort);
|
|
Tick doAtomicAccess(Packet &pkt);
|
|
void doFunctionalAccess(Packet &pkt);
|
|
|
|
void recvStatusChange(Port::Status status);
|
|
|
|
public:
|
|
virtual void serialize(std::ostream &os);
|
|
virtual void unserialize(Checkpoint *cp, const std::string §ion);
|
|
|
|
};
|
|
|
|
#endif //__PHYSICAL_MEMORY_HH__
|