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/*
* 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.
*/
/*
* @todo
* Should derive Tsunami from common platform class so PCI will work with
* multiple platforms
*
* @file
* PCI Config space implementation.
*/
#ifndef __PCICONFIGALL_HH__
#define __PCICONFIGALL_HH__
#include "mem/functional_mem/functional_memory.hh"
#include "dev/tsunami.hh"
#include "dev/pcireg.h"
#define MAX_PCI_DEV 32
#define MAX_PCI_FUNC 8
class PciDev;
/**
* PCI Config Space
* All of PCI config space needs to return -1 on Tsunami, except
* the devices that exist. This device maps the entire bus config
* space and passes the requests on to TsunamiPCIDev devices as
* appropriate.
*/
class PCIConfigAll : public FunctionalMemory
{
private:
Addr addr;
static const Addr size = 0xffffff;
protected:
/**
* Pointer to the Tsunmi Object so we can communicate
* to other Tsunami devices in need be.
* @todo Make this more generic for multiple platforms
*/
Tsunami *tsunami;
public:
/**
* Pointers to all the devices that are registered with this
* particular config space.
*/
PciDev* devices[MAX_PCI_DEV][MAX_PCI_FUNC];
/**
* The default constructor.
*/
PCIConfigAll(const std::string &name, Tsunami *t, Addr a,
MemoryController *mmu);
virtual Fault read(MemReqPtr &req, uint8_t *data);
virtual Fault write(MemReqPtr &req, const uint8_t *data);
virtual void serialize(std::ostream &os);
virtual void unserialize(Checkpoint *cp, const std::string §ion);
};
#endif // __PCICONFIGALL_HH__
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