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Diffstat (limited to 'mem/bus.hh')
| -rw-r--r-- | mem/bus.hh | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/mem/bus.hh b/mem/bus.hh deleted file mode 100644 index 38573e514..000000000 --- a/mem/bus.hh +++ /dev/null @@ -1,164 +0,0 @@ -/* - * 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. - */ - -/** - * @file Decleration of a bus object. - */ - -#ifndef __MEM_BUS_HH__ -#define __MEM_BUS_HH__ - -#include <string> -#include <list> -#include <inttypes.h> - -#include "base/range.hh" -#include "mem/mem_object.hh" -#include "mem/packet.hh" -#include "mem/port.hh" -#include "mem/request.hh" - -class Bus : public MemObject -{ - /** a globally unique id for this bus. */ - int busId; - - struct DevMap { - int portId; - Range<Addr> range; - }; - std::vector<DevMap> portList; - - - /** Function called by the port when the bus is recieving a Timing - transaction.*/ - bool recvTiming(Packet *pkt); - - /** Function called by the port when the bus is recieving a Atomic - transaction.*/ - Tick recvAtomic(Packet *pkt); - - /** Function called by the port when the bus is recieving a Functional - transaction.*/ - void recvFunctional(Packet *pkt); - - /** Function called by the port when the bus is recieving a status change.*/ - void recvStatusChange(Port::Status status, int id); - - /** Find which port connected to this bus (if any) should be given a packet - * with this address. - * @param addr Address to find port for. - * @param id Id of the port this packet was received from (to prevent - * loops) - * @return pointer to port that the packet should be sent out of. - */ - Port *findPort(Addr addr, int id); - - /** Process address range request. - * @param resp addresses that we can respond to - * @param snoop addresses that we would like to snoop - * @param id ide of the busport that made the request. - */ - void addressRanges(AddrRangeList &resp, AddrRangeList &snoop, int id); - - - /** Decleration of the buses port type, one will be instantiated for each - of the interfaces connecting to the bus. */ - class BusPort : public Port - { - /** A pointer to the bus to which this port belongs. */ - Bus *bus; - - /** A id to keep track of the intercafe ID this port is connected to. */ - int id; - - public: - - /** Constructor for the BusPort.*/ - BusPort(Bus *_bus, int _id) - : bus(_bus), id(_id) - { } - - protected: - - /** When reciving a timing request from the peer port (at id), - pass it to the bus. */ - virtual bool recvTiming(Packet *pkt) - { pkt->src = id; return bus->recvTiming(pkt); } - - /** When reciving a Atomic requestfrom the peer port (at id), - pass it to the bus. */ - virtual Tick recvAtomic(Packet *pkt) - { pkt->src = id; return bus->recvAtomic(pkt); } - - /** When reciving a Functional requestfrom the peer port (at id), - pass it to the bus. */ - virtual void recvFunctional(Packet *pkt) - { pkt->src = id; bus->recvFunctional(pkt); } - - /** When reciving a status changefrom the peer port (at id), - pass it to the bus. */ - virtual void recvStatusChange(Status status) - { bus->recvStatusChange(status, id); } - - // This should return all the 'owned' addresses that are - // downstream from this bus, yes? That is, the union of all - // the 'owned' address ranges of all the other interfaces on - // this bus... - virtual void getDeviceAddressRanges(AddrRangeList &resp, - AddrRangeList &snoop) - { bus->addressRanges(resp, snoop, id); } - - // Hack to make translating port work without changes - virtual int deviceBlockSize() { return 32; } - - }; - - /** An array of pointers to the peer port interfaces - connected to this bus.*/ - std::vector<Port*> interfaces; - - public: - - /** A function used to return the port associated with this bus object. */ - virtual Port *getPort(const std::string &if_name) - { - // if_name ignored? forced to be empty? - int id = interfaces.size(); - interfaces.push_back(new BusPort(this, id)); - return interfaces.back(); - } - - virtual void init(); - - Bus(const std::string &n, int bus_id) - : MemObject(n), busId(bus_id) {} - -}; - -#endif //__MEM_BUS_HH__ |