Files
gem5/arch/alpha/alpha_memory.hh
Steve Reinhardt 1511370d09 More progress on checkpointing... we can now write out a checkpoint and read it back in,
though most objects don't actually serialize any data.

arch/alpha/alpha_memory.cc:
arch/alpha/alpha_memory.hh:
arch/alpha/isa_traits.hh:
cpu/exec_context.cc:
cpu/exec_context.hh:
cpu/simple_cpu/simple_cpu.hh:
dev/alpha_access.h:
dev/alpha_console.cc:
dev/alpha_console.hh:
dev/console.cc:
dev/console.hh:
    Change unserialize param from IniFile& to const IniFile*.
cpu/simple_cpu/simple_cpu.cc:
    Change unserialize param from IniFile& to const IniFile*.
    Make unserialize call ExecContext::unserialize.
sim/eventq.cc:
    Rename MainEventQueue (no spaces) for easier parsing in checkpoints.
    Disable event serialization for now, so we can focus on the easy stuff.
sim/serialize.cc:
    Change paramIn and arrayParamIn param from IniFile& to const IniFile*.
sim/serialize.hh:
    Change unserialize, paramIn, and arrayParamIn params from IniFile& to const IniFile*.

--HG--
extra : convert_revision : 6e8853ed375eddec0e140c95a01dd51bd225f7b9
2003-10-29 00:41:24 -08:00

126 lines
4.0 KiB
C++

/*
* Copyright (c) 2003 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.
*/
#ifndef __ALPHA_MEMORY_HH__
#define __ALPHA_MEMORY_HH__
#include <map>
#include "mem/mem_req.hh"
#include "sim/sim_object.hh"
#include "base/statistics.hh"
class ExecContext;
class AlphaTlb : public SimObject
{
protected:
typedef std::multimap<Addr, int> PageTable;
PageTable lookupTable; // Quick lookup into page table
AlphaISA::PTE *table; // the Page Table
int size; // TLB Size
int nlu; // not last used entry (for replacement)
void nextnlu() { if (++nlu >= size) nlu = 0; }
AlphaISA::PTE *lookup(Addr vpn, uint8_t asn) const;
public:
AlphaTlb(const std::string &name, int size);
virtual ~AlphaTlb();
int getsize() const { return size; }
AlphaISA::PTE &index();
void insert(Addr vaddr, AlphaISA::PTE &pte);
void flushAll();
void flushProcesses();
void flushAddr(Addr addr, uint8_t asn);
// static helper functions... really EV5 VM traits
static bool validVirtualAddress(Addr vaddr) {
// unimplemented bits must be all 0 or all 1
Addr unimplBits = vaddr & VA_UNIMPL_MASK;
return (unimplBits == 0) || (unimplBits == VA_UNIMPL_MASK);
}
static void checkCacheability(MemReqPtr req);
// Checkpointing
virtual void serialize(std::ostream &os);
virtual void unserialize(const IniFile *db, const std::string &section);
};
class AlphaItb : public AlphaTlb
{
protected:
mutable Statistics::Scalar<> hits;
mutable Statistics::Scalar<> misses;
mutable Statistics::Scalar<> acv;
mutable Statistics::Formula accesses;
protected:
void fault(Addr pc, ExecContext *xc) const;
public:
AlphaItb(const std::string &name, int size);
virtual void regStats();
Fault translate(MemReqPtr req) const;
};
class AlphaDtb : public AlphaTlb
{
protected:
mutable Statistics::Scalar<> read_hits;
mutable Statistics::Scalar<> read_misses;
mutable Statistics::Scalar<> read_acv;
mutable Statistics::Scalar<> read_accesses;
mutable Statistics::Scalar<> write_hits;
mutable Statistics::Scalar<> write_misses;
mutable Statistics::Scalar<> write_acv;
mutable Statistics::Scalar<> write_accesses;
Statistics::Formula hits;
Statistics::Formula misses;
Statistics::Formula acv;
Statistics::Formula accesses;
protected:
void fault(Addr pc, uint64_t flags, ExecContext *xc) const;
public:
AlphaDtb(const std::string &name, int size);
virtual void regStats();
Fault translate(MemReqPtr req, bool write) const;
};
#endif // __ALPHA_MEMORY_HH__