4875b33467
first crack at io devices code
made CpuRequest that derives from Request
dev/io_device.cc:
dev/io_device.hh:
first crack at the classes for Pio and Dma devices
dev/platform.hh:
We are going to a system pointer to get info about the memory system
mem/bus.hh:
changed sendresult -> bool,tick,void as appropriate
mem/port.hh:
changed sendresult -> bool,tick,void as appropriate;
removed the sendTiming(pkt,t) call since it is not really
implementable in a generic fashion
mem/request.hh:
pulled items from Request into CpuRequest
--HG--
extra : convert_revision : 6213cf2b66417fa023b80884d9e623e78f5aa891
78 lines
2.6 KiB
C++
78 lines
2.6 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.
|
|
*/
|
|
|
|
/**
|
|
* @file Decleration of a request, the overall memory request consisting of
|
|
the parts of the request that are persistent throughout the transaction.
|
|
*/
|
|
|
|
#ifndef __MEM_REQUEST_HH__
|
|
#define __MEM_REQUEST_HH__
|
|
|
|
class Request
|
|
{
|
|
|
|
/** The physical address of the request. */
|
|
Addr paddr;
|
|
|
|
/** whether this req came from the CPU or not **DO we need this??***/
|
|
bool nicReq;
|
|
|
|
/** The size of the request. */
|
|
int size;
|
|
|
|
/** The time this request was started. Used to calculate latencies. */
|
|
Tick time;
|
|
|
|
/** Destination address if this is a block copy. */
|
|
Addr copyDest;
|
|
};
|
|
|
|
class CpuRequest : public Request
|
|
{
|
|
/** The virtual address of the request. */
|
|
Addr vaddr;
|
|
|
|
/** The address space ID. */
|
|
int asid;
|
|
|
|
/** The return value of store conditional. */
|
|
uint64_t scResult;
|
|
|
|
/** The cpu number for statistics. */
|
|
int cpuNum;
|
|
|
|
/** The requesting thread id. */
|
|
int threadNum;
|
|
|
|
/** program counter of initiating access; for tracing/debugging */
|
|
Addr pc;
|
|
};
|
|
|
|
#endif // __MEM_REQUEST_HH__
|