gem5/src/dev/isa_fake.cc
Steve Reinhardt e533fad711 Significant rework of Packet class interface:
- new constructor guarantees initialization of most fields
- flags track status of non-guaranteed fields (addr, size, src)
- accessor functions (getAddr() etc.) check status on access
- Command & Result classes are nested in Packet class scope
- Command now built from vector of behavior bits
- string version of Command for tracing
- reinitFromRequest() and makeTimingResponse() encapsulate
common manipulations of existing packets

src/cpu/simple/atomic.cc:
src/cpu/simple/base.cc:
src/cpu/simple/timing.cc:
src/dev/alpha_console.cc:
src/dev/ide_ctrl.cc:
src/dev/io_device.cc:
src/dev/io_device.hh:
src/dev/isa_fake.cc:
src/dev/ns_gige.cc:
src/dev/pciconfigall.cc:
src/dev/sinic.cc:
src/dev/tsunami_cchip.cc:
src/dev/tsunami_io.cc:
src/dev/tsunami_pchip.cc:
src/dev/uart8250.cc:
src/mem/bus.cc:
src/mem/bus.hh:
src/mem/physical.cc:
src/mem/port.cc:
src/mem/port.hh:
src/mem/request.hh:
    Update for new Packet interface.

--HG--
extra : convert_revision : 9973d09ea4fa61795f23772a7d3995fa4df5c269
2006-05-26 14:17:33 -04:00

122 lines
3.6 KiB
C++

/*
* 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.
*/
/** @file
* Isa Fake Device implementation
*/
#include <deque>
#include <string>
#include <vector>
#include "base/trace.hh"
#include "dev/isa_fake.hh"
#include "mem/packet.hh"
#include "sim/builder.hh"
#include "sim/system.hh"
using namespace std;
IsaFake::IsaFake(Params *p)
: BasicPioDevice(p)
{
pioSize = p->pio_size;
}
Tick
IsaFake::read(Packet *pkt)
{
assert(pkt->result == Packet::Unknown);
assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
pkt->time += pioDelay;
DPRINTF(Tsunami, "read va=%#x size=%d\n", pkt->getAddr(), pkt->getSize());
switch (pkt->getSize()) {
pkt->set(0xFFFFFFFFFFFFFFFFULL);
break;
case sizeof(uint32_t):
pkt->set((uint32_t)0xFFFFFFFF);
break;
case sizeof(uint16_t):
pkt->set((uint16_t)0xFFFF);
break;
case sizeof(uint8_t):
pkt->set((uint8_t)0xFF);
break;
default:
panic("invalid access size(?) for PCI configspace!\n");
}
pkt->result = Packet::Success;
return pioDelay;
}
Tick
IsaFake::write(Packet *pkt)
{
pkt->time += pioDelay;
DPRINTF(Tsunami, "write - va=%#x size=%d \n", pkt->getAddr(), pkt->getSize());
pkt->result = Packet::Success;
return pioDelay;
}
BEGIN_DECLARE_SIM_OBJECT_PARAMS(IsaFake)
Param<Addr> pio_addr;
Param<Tick> pio_latency;
Param<Addr> pio_size;
SimObjectParam<Platform *> platform;
SimObjectParam<System *> system;
END_DECLARE_SIM_OBJECT_PARAMS(IsaFake)
BEGIN_INIT_SIM_OBJECT_PARAMS(IsaFake)
INIT_PARAM(pio_addr, "Device Address"),
INIT_PARAM(pio_latency, "Programmed IO latency"),
INIT_PARAM(pio_size, "Size of address range"),
INIT_PARAM(platform, "platform"),
INIT_PARAM(system, "system object")
END_INIT_SIM_OBJECT_PARAMS(IsaFake)
CREATE_SIM_OBJECT(IsaFake)
{
IsaFake::Params *p = new IsaFake::Params;
p->name = getInstanceName();
p->pio_addr = pio_addr;
p->pio_delay = pio_latency;
p->pio_size = pio_size;
p->platform = platform;
p->system = system;
return new IsaFake(p);
}
REGISTER_SIM_OBJECT("IsaFake", IsaFake)