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/*
* Copyright (c) 2004-2005 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.
*
* Authors: Andrew Schultz
* Ali Saidi
*/
/*
* @file
* PCI Config space implementation.
*/
#ifndef __PCICONFIGALL_HH__
#define __PCICONFIGALL_HH__
#include "dev/io_device.hh"
#include "dev/pcireg.h"
#include "params/PciConfigAll.hh"
/**
* 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 TsunamiPCIDevice devices as
* appropriate.
*/
class PciConfigAll : public BasicPioDevice
{
public:
typedef PciConfigAllParams Params;
const Params *params() const { return (const Params *)_params; }
/**
* Constructor for PCIConfigAll
* @param p parameters structure
*/
PciConfigAll(const Params *p);
/**
* Read something in PCI config space. If the device does not exist
* -1 is returned, if the device does exist its PciDevice::ReadConfig
* (or the virtual function that overrides) it is called.
* @param pkt Contains information about the read operation
* @return Amount of time to do the read
*/
virtual Tick read(PacketPtr pkt);
/**
* Write to PCI config spcae. If the device does not exit the simulator
* panics. If it does it is passed on the PciDevice::WriteConfig (or
* the virtual function that overrides it).
* @param pkt Contains information about the write operation
* @return Amount of time to do the read
*/
virtual Tick write(PacketPtr pkt);
};
#endif // __PCICONFIGALL_HH__
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