gem5/sim/system.hh
Ali Saidi bb80f71f21 fixes for new memory system
SConscript:
    comment out most devices
    add vport.cc
arch/alpha/arguments.cc:
arch/alpha/arguments.hh:
    push in alpha name space
    fix for new memory system
arch/alpha/faults.cc:
arch/alpha/faults.hh:
    Added an unimplemented fault that can be returned if a certain
    function isn't implemented
arch/alpha/freebsd/system.cc:
arch/alpha/linux/system.cc:
arch/alpha/stacktrace.cc:
arch/alpha/system.cc:
arch/alpha/tlb.hh:
arch/alpha/tru64/system.cc:
    fixed for new memory system
arch/alpha/tlb.cc:
    fixed for new memory system
    removed code that seems to have no purpose
arch/alpha/vtophys.cc:
arch/alpha/vtophys.hh:
    fixed for new memory system
    put in namespace AlphaISA
base/remote_gdb.cc:
    fix for new memory system
cpu/cpu_exec_context.cc:
cpu/cpu_exec_context.hh:
cpu/exec_context.hh:
    create two ports one of physical accesses and one for superpage accesses
    Add functions getVirtPort() getPhysPort() delVirtPort(). To get statically
    allocated physical or virtual ports or if an execcontext is passed in
    get a dynamically allocated virtual port
dev/alpha_console.cc:
dev/alpha_console.hh:
    Redo for new memory system
dev/io_device.cc:
dev/io_device.hh:
    new I/O devices for new memory system
kern/linux/events.cc:
kern/linux/printk.cc:
kern/linux/printk.hh:
kern/tru64/dump_mbuf.hh:
kern/tru64/printf.cc:
kern/tru64/printf.hh:
    Arguments now in namespaces
kern/tru64/tru64_events.cc:
mem/bus.cc:
    fix for new memory syste
mem/physical.hh:
    new addressranges function
    getPort should be public
mem/port.hh:
    Add write/read methods to functional port
    update getDeviceAddrRanges to have a list of both snoops and response lists
sim/pseudo_inst.cc:
sim/system.cc:
sim/system.hh:
    Update for new mem system
sim/vptr.hh:
    comment out code and replace with panics
    This will need to be fixed at some point, but it's not easy.

--HG--
extra : convert_revision : 41f41f422cfbab3751284d55cccb6ea64a7956e2
2006-04-06 00:51:46 -04:00

228 lines
5.6 KiB
C++

/*
* Copyright (c) 2002-2005 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.
*/
#ifndef __SYSTEM_HH__
#define __SYSTEM_HH__
#include <string>
#include <vector>
#include "base/loader/symtab.hh"
#include "base/misc.hh"
#include "base/statistics.hh"
#include "cpu/pc_event.hh"
#include "mem/port.hh"
#include "sim/sim_object.hh"
#if FULL_SYSTEM
#include "kern/system_events.hh"
#include "mem/vport.hh"
#endif
class BaseCPU;
class ExecContext;
class ObjectFile;
class PhysicalMemory;
#if FULL_SYSTEM
class Platform;
class GDBListener;
class RemoteGDB;
namespace Kernel { class Binning; }
#endif
class System : public SimObject
{
public:
PhysicalMemory *physmem;
PCEventQueue pcEventQueue;
std::vector<ExecContext *> execContexts;
int numcpus;
int getNumCPUs()
{
if (numcpus != execContexts.size())
panic("cpu array not fully populated!");
return numcpus;
}
#if FULL_SYSTEM
Platform *platform;
uint64_t init_param;
/** Port to physical memory used for writing object files into ram at
* boot.*/
FunctionalPort functionalPort;
VirtualPort virtPort;
/** kernel symbol table */
SymbolTable *kernelSymtab;
/** Object pointer for the kernel code */
ObjectFile *kernel;
/** Begining of kernel code */
Addr kernelStart;
/** End of kernel code */
Addr kernelEnd;
/** Entry point in the kernel to start at */
Addr kernelEntry;
Kernel::Binning *kernelBinning;
#else
int page_ptr;
#endif // FULL_SYSTEM
protected:
#if FULL_SYSTEM
/**
* Fix up an address used to match PCs for hooking simulator
* events on to target function executions. See comment in
* system.cc for details.
*/
virtual Addr fixFuncEventAddr(Addr addr) = 0;
/**
* Add a function-based event to the given function, to be looked
* up in the specified symbol table.
*/
template <class T>
T *System::addFuncEvent(SymbolTable *symtab, const char *lbl)
{
Addr addr = 0; // initialize only to avoid compiler warning
if (symtab->findAddress(lbl, addr)) {
T *ev = new T(&pcEventQueue, lbl, fixFuncEventAddr(addr));
return ev;
}
return NULL;
}
/** Add a function-based event to kernel code. */
template <class T>
T *System::addKernelFuncEvent(const char *lbl)
{
return addFuncEvent<T>(kernelSymtab, lbl);
}
#endif
public:
#if FULL_SYSTEM
std::vector<RemoteGDB *> remoteGDB;
std::vector<GDBListener *> gdbListen;
virtual bool breakpoint() = 0;
#endif // FULL_SYSTEM
public:
struct Params
{
std::string name;
PhysicalMemory *physmem;
#if FULL_SYSTEM
Tick boot_cpu_frequency;
uint64_t init_param;
bool bin;
std::vector<std::string> binned_fns;
bool bin_int;
std::string kernel_path;
std::string readfile;
#endif
};
protected:
Params *_params;
public:
System(Params *p);
~System();
void startup();
const Params *params() const { return (const Params *)_params; }
public:
#if FULL_SYSTEM
/**
* Returns the addess the kernel starts at.
* @return address the kernel starts at
*/
Addr getKernelStart() const { return kernelStart; }
/**
* Returns the addess the kernel ends at.
* @return address the kernel ends at
*/
Addr getKernelEnd() const { return kernelEnd; }
/**
* Returns the addess the entry point to the kernel code.
* @return entry point of the kernel code
*/
Addr getKernelEntry() const { return kernelEntry; }
#else
Addr new_page();
#endif // FULL_SYSTEM
int registerExecContext(ExecContext *xc, int xcIndex);
void replaceExecContext(ExecContext *xc, int xcIndex);
void regStats();
void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string &section);
public:
////////////////////////////////////////////
//
// STATIC GLOBAL SYSTEM LIST
//
////////////////////////////////////////////
static std::vector<System *> systemList;
static int numSystemsRunning;
static void printSystems();
};
#endif // __SYSTEM_HH__